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Upcoming Meetings

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September 2018

Varieties: Arithmetic and Transformations

ag.algebraic-geometry nt.number-theory
2018-09-01 through 2018-12-01
University of Warsaw
Warsaw; Poland

Meeting Type: conference

Contact: see conference website

Description

Focus points

  • Group actions: Mori Dream Spaces, $T$-varieties, also toric varieties, homogeneous spaces, contact Fano manifolds, Cremona groups, actions of finite groups, $\mathbb{G}_a$ and $\mathbb{G}_m$ actions on affine varieties,
  • Arithmetic: arithmetic aspects of differential equations, $p$-adic cohomologies, crystals, automorphic forms, Calabi-Yau varieties, arithmetic aspects of mirror symmetry, finding rational points on manifolds,
  • Parametrizing varieties: Hilbert scheme of points, rational curves on manifolds, secant varieties, tensor ranks, Waring ranks and related notions with their applications to complexity theory, engineering and quantum physics

TRR195 "Symbolic tools in mathematics and their application" annual meeting

gm.general-mathematics
2018-09-24 through 2918-09-28
University of Tuebingen
Tuebingen; Germany

Meeting Type: conference

Contact: Hannah Markwig

Description

The TRR 195 is a Collaborative Research Center of type Transregio established by the German Research Foundation DFG. It focuses on algorithmic and experimental methods in its five core research areas: group and representation theory; algebraic geometry, commutative and non-commutative algebra; tropical and polyhedral geometry; number theory; random matrix theory and free probability.

In addition to talks by the members of the TRR195, the conference will feature main talks by

Nils Bruin, Alicia Dickenstein, Derek Holt, Ion Nechita, Bernd Sturmfels.

November 2018

Sixth Abel Conference: A Mathematical Celebration of Robert P. Langlands

ag.algebraic-geometry nt.number-theory rt.representation-theory
2018-11-14 through 2018-11-16
Institute for Mathematics and its Applications (IMA), University of Minnesota
Minneapolis, MN; USA

Meeting Type: conference

Contact: Ben Brubaker

Description

none

Workshop on André-Oort problems

lo.logic ag.algebraic-geometry
2018-11-16 through 2018-11-16
Albert-Ludwigs-Universität Freiburg
Freiburg im Breisgau; Germany

Meeting Type: workshop

Contact: Johan Commelin, Brad Drew

Description

The goal of the workshop is to explore the application of o-minimal structures to the study of André-Oort problems.

Speakers:

  • Philipp Habegger, Universität Basel
  • Amador Martin-Pizarro, Universität Freiburg
  • Rutger Noot, Université Strasbourg
  • Jonathan Pila, Oxford University

D-modules and Hodge theory

cv.complex-variables ag.algebraic-geometry
2018-11-16 through 2018-11-18
University of Illinois, Chicago
Chicago, IL; USA

Meeting Type: instructional workshop

Contact: see conference website

Description

none

Southern California Algebraic Geometry Seminar

ag.algebraic-geometry
2018-11-17 through 2018-11-17
UCLA
Los Angeles, CA; USA

Meeting Type: conference

Contact: see conference website

Description

none

22nd Workshop on Elliptic Curve Cryptography

ac.commutative-algebra ag.algebraic-geometry nt.number-theory
2018-11-17 through 2018-11-21
Osaka; Japan

Meeting Type: summer school, conference

Contact: see conference website

Description

ECC is an annual workshops dedicated to the study of elliptic curve cryptography and related areas. For more information, also about past editions of ECC, please see the main ECC website. The 22nd Workshop on Elliptic Curve Cryptography (ECC 2018) will take place on 2018, in Osaka, Japan. The aim of ECC is to bring together leading experts from academia, industry, and government, as well as young researchers and graduate students for the purpose of exchanging ideas and presenting their work. The ECC Workshops has invited presentations only. Presentations tend to give an overview on emerging or established areas of modern cryptography, often combined with new research findings.

The workshop is accompanied by a 2-days autumn school on elliptic curves aimed at getting graduate students involved in the area. The school will take place on November 17-18, 2018.

Syntomic cohomology and p-adic Hodge theory

ag.algebraic-geometry nt.number-theory
2018-11-18 through 2018-11-24
MFO
Oberwolfach; Germany

Meeting Type: school

Contact: see conference website

Description

none

6th Global summit on Climate Change

rt.representation-theory
2018-11-19 through 2018-11-20
Paris; France

Meeting Type: conference

Contact: Anna Mathews

Description

Climate Change Summit 2018 is the one of the leading environmental conferences gathering largest gathering of participants from the field of climate change and environmental sciences. This conference gives specialized gathering and impact on the participants to learn and reveal about most advanced research towards global warming and climate change.

Biarri Applied Mathematics Conference 2018

gm.general-mathematics oc.optimization-and-control st.statistics-theory
2018-11-20 through 2018-11-21
Biarri
Melbourne, Victoria; Australia

Meeting Type: conference

Contact: Evan Shellshear

Description

The world is changing around us. Optimisation– which used to be hidden behind closed doors is now at our fingertips shaping the way in which we live our lives, move our goods, and make our decisions. From healthcare, sports, transport and manufacturing through to the deployment of next generation fibre networks, mathematics is core to working in the 21st century.

This year the BAM Conference will be bringing together innovators, scholars and thinkers to focus on ‘Invisible Intelligence’ and through expert presentations, lightning talks and panel discussions demonstrate how we are using optimisation and mathematics behind the scenes to keep our world moving.

International Conference on Mathematical Modelling, Analysis and Computational Engineering ( ICMMACE 2018 )

ac.commutative-algebra mp.mathematical-physics na.numerical-analysis
2018-11-21 through 2018-11-22
Meij University Tokyo
Tokyo; Japan

Meeting Type: conference

Contact: Prof. Neerwan Nepa

Description

The aim of this conference is to bring together leading researchers and academics in the field of applied mathematics and engineers in order to debate current and interdisciplinary topics in control, fractional calculus, optimization and their applications in engineering science.

Combinatorial Categories in Algebra and Topology

ac.commutative-algebra at.algebraic-topology co.combinatorics
2018-11-22 through 2018-11-24
Osnabrueck University, Institute of Mathematics
Osnabrueck; Germany

Meeting Type: workshop

Contact: Tim Roemer, Oliver Roendigs, Markus Spitzweck

Description

This workshop concerns prominent indexing categories with applications to interesting problems in commutative algebra and algebraic topology. The prime example sparking our interest is the work of Snowden, Church, Ellenberg and others on GL-structures and FI-modules, which involves variations on categories of finite sets and injections. These occur prominently in algebraic topology whenever algebraic structures up to homotopy have to be encoded. Our aim is to bring researchers with different backgrounds but a common interest in special indexing categories together and catalyze a fruitful exchange. Invited speakers include:

  • Rob H. Eggermont (Eindhoven University of Technology, The Netherlands)
  • Moritz Groth (University of Bonn, Germany)
  • Javier J. Gutiérrez (Universidad de Cantabria, Spain)
  • Henning Krause (University of Bielefeld, Germany)
  • Liping Li (Hunan Normal University, China)
  • Ieke Moerdijk (University of Utrecht, The Netherlands)
  • Uwe Nagel (University of Kentucky, USA)
  • Dang Hop Nguyen (Hanoi Institute of Mathematics, Vietnam)
  • Steffen Sagave (University of Bonn, Germany)
  • Stefan Schwede (University of Bonn, Germany)

December 2018

D-modules, quantum geometry and related topics

ag.algebraic-geometry cv.complex-variables dg.differential-geometry
2018-12-03 through 2018-12-07
Research Institute for Mathematical Sciences, Kyoto University
Kyoto; Japan

Meeting Type: conference

Contact: Takuro Mochizuki, Masa-Hiko Saito, Claude Sabbah

Description

D-modules have recently played an important role in various fields of mathematics, including algebraic geometry, mathematical physics, arithmetic geometry, etc. The aim of this conference is to present several important developments related with D-modules. A series of survey talks on four active topics will be given by leading experts, together with research talks on related topics.

Manifolds

at.algebraic-topology gt.geometric-topology
2018-12-03 through 2018-12-07
Isaac Newton Institute for Mathematical Sciences
Cambrige, England; UK

Meeting Type: workshop

Contact: David Ayala, Oscar Randal-Williams, Ulrike Tillmann, Michael Weiss, Paul Goerss

Description

Part of the Semester Program "Homotopy Harnessing Higher Structures." This programme will highlight four related themes: the new algebraic topology of differentiable manifolds, derived representation theory and equivariant homotopy theory, the interplay between arithmetic geometry and stable homotopy theory, and the analysis of foundations in these new contexts "the homotopy theory of homotopy theory". This workshop will focus on the algebraic topology of manifolds.

INTERNATIONAL WORKSHOP AND CONFERENCE ON TOPOLOGY AND APPLICATIONS

ds.dynamical-systems gn.general-topology
2018-12-05 through 2018-12-11
RAJAGIRI SCHOOL OF ENGINEERING & TECHNOLOGY
Cochin, Kerala; India

Meeting Type: Workshop and conference

Contact: Vinod Kumar P B

Description

Objective: To inspire and motivate researchers and students working in the areas of Topology and its Applications

Workshop Themes: • Topological Dynamical Systems (TDS) • Topological Data Analysis (TDA)

Invited talks and Contributory papers in the conference: • Topological Dynamical Systems • General Topology • Algebraic Top0logy • Differential Topology • Fuzzy Topology • Topological Groups • Linear Dynamics • Dynamics of Operators • Network topology • Topological Data Analysis • Iterated Function Systems • Applications of Topology

Invited Speakers • *A. N. Sharkovsky, Institute of Mathematics, National Academy of Science of Ukraine • *Andrei Tetenov, Gorno-Altaisk State University, Russia • *Anima Nagar, Indian Institute of Technology, Delhi, India • *Chris Good, School of Mathematics, University of Birmingham, UK • *Dan Burghelea, Ohio State University, USA • *Dominic Kwietniak, Jagiellonian University in Krakow, Poland • * Henk Bruin, University of Vienna, Austria • *Herbert Edlesbrunner, Institute of Science & Technology, Austria • *Hisao Kato, University of Tsukuba, Japan • *James Yorke, University of Maryland, USA • *Javier Camargo, Universidad Industrial de Santander, Colombia • *Jose S Canovas, Polytechnic University of Cartagena, Spain • *Karoly Simon, Budapest University of Technology and Economics, Hungary • *Kit Chan, Bowling Greenstate University, USA • *Krzysztof Lesniak, Nicolaus Copernicus University, Poland • *P G Patil, Karnatak University, Dharward, India • *Lubomir Snoha, Matej Bel University, Slovakia • *Parameswaran Sankaran, Institute of Mathematical Sciences, India • *Robert Devaney, Boston University, USA • *Roman Hric, Matej Bel University, Slovakia • *Saber Elaydi, Trinity University, USA • *Sergiy Kolyada, Institute of Mathematics, Ukraine • *Varadachariar Kannan, University of Hyderabad, India • *Vijay Natarajan, Indian Institute of Science, India • *Wlodzimierz .J. Charatonik, Missouri University of Science and Technology, USA • Bau Sen Du, Academia sinica, Taiwan • Felix Martinez Gimenez, Instituto de Matemàtica Pura y Aplicada,, Spain • Gunnar Carllson, Stanford University, USA • Jaroslav Smital, Mathematical Institute in Opava, Czech Republic • Jian Li, Shantou University, China • Jie Hua Mai, Shantou University, China • Joseph Auslander, University of Maryland, USA • Larry Wasserman, Carnegie Mellon University, USA • Luis Alseda, Universitat Autònoma de Barcelona, Spain, • Michal Malek, Mathematical Institute in Opava, Czech Republic • Michal Rams, Institute of Mathematics, Polish Academy of Sciences • Paul S Bourdon, University of Virginia • Pat Touhey, Misericordia University, USA • Peter Raith, Universität Wien,Oskar-Morgenstern-Platz 1, Austria • Tomasz Downarowicz, Wroclaw University of Technology, Poland • Vin de Silva, Pomona College, California, USA *confirmed speakers

School on cluster algebras

ac.commutative-algebra ag.algebraic-geometry
2018-12-08 through 2018-12-22
International Centre for Theoretical Sciences
Bengaluru; India

Meeting Type: school

Contact: see conference website

Description

In 2000, S. Fomin and A. Zelevinsky introduced Cluster Algebras as abstractions of a combinatoro-algebraic phenomenon that is found in many different areas throughout mathematics. Defined as a sub-algebra of the ambient field of rational functions in finitely many variables, it is generated by union of cluster variables. The cluster variables are distributed across clusters. The clusters arise from an original "seed'' by a process known as mutation. For example, given a regular polygon with n sides the triangulations of this polygon with non-crossing diagonals can be obtained from a given triangulation of this type by a sequence of diagonal flips. Combinatorial data at a given cluster may be defined in terms of a quiver or alternatively a skew-symmetric matrix and using this quiver or matrix, the other clusters may be obtained by mutations. The clusters can be visualized as a graph with vertices being the clusters and edges being the mutations.

As it turns out the coordinate rings of Grassmannians, Shubert varieties and homogenous spaces are cluster algebras. The initial motivation behind study of these algebras was to provide an algebraic and combinatorial framework for Lusztig's work on canonical bases but now it has gone far beyond that initial motivation. Cluster algebras now have connections to string theory, Poisson geometry, algebraic geometry, combinatorics, representation theory and Teichmuller theory, quantum groups, and quiver representations.

The aim of this program is to bring together experts and interested students and researchers in this area. There will be lectures and talks by the experts on various topics around the central theme of cluster algebras and their applications. The hope is that participants will benefit from this program both by gaining insight into a key theme pervading and unifying several important fields and by applying the new methods to their research.

Arithmetic and Geometry of Orbifolds

ag.algebraic-geometry nt.number-theory
2018-12-11 through 2018-12-13
UQÀM
Montréal, Québec; Canada

Meeting Type: workshop

Contact: Alexandra Haedrich

Description

The purpose is to gather experts from two mathematical communities, arithmetic geometry and complex geometry, who study log-pairs from different perspectives .

Symplectic geometry and homotopy theory

at.algebraic-topology gt.geometric-topology sg.symplectic-geometry
2018-12-12 through 2018-12-14
UCLA
Los Angeles, CA; USA

Meeting Type: conference

Contact: Mohammed Abouzaid

Description

FRG-supported conference on the interaction between symplectic topology and homotopy theory.

Classical and quantum three-manifold topology: student workshop

at.algebraic-topology gt.geometric-topology qa.quantum-algebra rt.representation-theory sg.symplectic-geometry
2018-12-14 through 2018-12-15
Monash University
Melbourne, Victoria; Australia

Meeting Type: student workshop

Contact: Paul Wedrich

Description

none

Classical and quantum three-manifold topology: conference

qa.quantum-algebra gt.geometric-topology at.algebraic-topology rt.representation-theory sg.symplectic-geometry
2018-12-17 through 2018-12-21
Monash University
Melbourne, Victoria; Australia

Meeting Type: conference

Contact: Paul Wedrich

Description

The last four decades have revealed many deep connections between topological quantum field theory (TQFT), low-dimensional topology, and geometric structures on manifolds, particularly hyperbolic geometry. This conference will further explore and strengthen these connections by bringing together a distinguished international group of researchers working in or at the interface of these subjects.

Gauge Theory Ideas for Number Theory

ag.algebraic-geometry mp.mathematical-physics nt.number-theory
2018-12-17 through 2018-12-21
International Centre for Theoretical Sciences
Bengaluru; India

Meeting Type: discussion meeting

Contact: see conference website

Description

This discussion meeting is aimed at promoting fruitful interactions between theoretical physicists and mathematicians in areas that could be of common interest. In the past few decades, the interaction between algebraic geometry and quantum field theory has contributed substantial insights to both areas. Now seems to be an opportune moment to extend the areas of cross-fertilisation to include arithmetic geometry, comprising the study of arithmetic schemes and their Diophantine geometry, the theory of Galois representations, and the arithmetic Langlands programme.

The ICTS discussion meeting will focus on some ideas that Minhyong Kim and others have been pursuing (see Link). There are analogies between the moduli spaces of arithmetic principal bundles and constructions in quantum field theory, in particular, Chern-Simons theory. The idea of the meeting is to have about a dozen number theorists and string theorists (and some other local participants) to explore this common ground. There will be informal lectures by Minhyong Kim as well as a few others explaining these as well as related ideas but the main purpose is to have time for discussions and throwing ideas around in an informal setting. It would also be an opportunity to learn concepts as well as approaches and interesting questions across the walls of these two distinct communities.

On the Langlands Program: Endoscopy and Beyond

nt.number-theory rt.representation-theory
2018-12-17 through 2019-01-18
National University of Singapore
Singapore; Singapore

Meeting Type: thematic program

Contact: see conference website

Description

This programme will focus on the study of the Langlands functoriality conjecture, including the endoscopy theory and the cases beyond endoscopy.

For the endoscopy case, Langlands functoriality is established by using the trace formula approach in general. Some special cases can also be established by the converse theorem-integral representation approach, and the automorphic integral transform approach.

Based on those successful cases, several new approaches are proposed. The key idea is to construct certain appropriate automorphic kernel functions and study them in various ways in order to establish functorial transfers for automorphic forms in the relative general setting.

These bring us the following four topics of the program:

Refined structures and properties for endoscopy theory: local and global.
Various types of trace formulas, generalized Fourier transforms and Poisson summation formulas, and applications.
Explicit constructions of certain Langlands functorial transfers via integral transformations.
Extension of the existing theory in the Langlands program to covering groups.

The goal of the program is to bring together experts researching in automorphic kernel functions to foster interaction, collaboration and the exchange of ideas on the new approaches. It aims to develop those approaches that will provide us further insights and progress, and lead to an eventual resolution of the Langlands functoriality conjectures.

January 2019

Explicit Number Theory

ag.algebraic-geometry nt.number-theory
2019-01-07 through 2019-01-11
Valparaíso; Chile

Meeting Type: conference

Contact: see conference website

Description

none

Categorification in quantum topology and beyond

at.algebraic-topology gt.geometric-topology qa.quantum-algebra rt.representation-theory sg.symplectic-geometry
2019-01-07 through 2019-01-18
Erwin Schrödinger International Institute for Mathematics and Physics
Vienna; Austria

Meeting Type: conference

Contact: Paul Wedrich

Description

Categorification is a flexible and powerful set of techniques and ideas, which produces insight about mathematical structures by viewing them as shadows of objects in a richer world, often described in terms of higher categories. Two important and interrelated categorification programmes, which are the basis for this workshop, concern the concepts of quantum link homologies and higher representation theory. Both have their origin in mathematics, but have since developed into some of the most fruitful grounds for collaboration between pure mathematics and theoretical physics.

The first week of this workshop will make the recent rapid developments in the areas of quantum link homologies and higher representation theory accessible to non-experts and intensify communication between specialists in these and related areas like gauge theory, TQFT, quantum Teichmüller theory, and string theory. The second week will be used to host a research conference with thematic emphasis on categorification of skein theory and 3-manifold invariants.

Topology of Manifolds: interactions between high and low dimensions

at.algebraic-topology gt.geometric-topology
2019-01-07 through 2019-01-18
MATRIX Research Institute
Creswick campus; Australia

Meeting Type: Workshop

Contact: Jonathan Bowden, Diarmuid Crowley, Jim Davis, Stefan Friedl, Carmen Rovi, Stephan Tillmann

Description

This meeting will bring together students, postdocs, and researchers from all over the world to stimulate research on fundamental questions in manifold theory. It will promote the interaction between researchers in high and low dimensional topology. The meeting is structured as follows: mini-courses in the first week by world experts (Lueck, Stipsicz, and Teichner) and a conference in the second week. Both weeks focus on open problems and collaborative work. This structure will greatly benefit early career researchers. Another feature of the meeting that will make it accessible is the theme of the program: promoting interactions between high and low dimensions will mitigate the tendency of technical talks and problems. There are two main research aims for this meeting. The first is to identify settings for synergy from the interaction between high and low dimensions and to make progress on problems in these settings. The second is to produce a high-quality problem list to guide future research in manifold topology. It is our hope that a well-crafted and publicized problem list arising from the collaboration during the meeting will be of long-term benefit to the mathematical community.

An n-manifold is a space which locally resembles n-dimensional Euclidean space. Manifolds of dimension less or equal than 3 are studied using geometric techniques. Manifolds of dimension greater or equal than 5 are studied via surgery theory, which involves a mix of algebraic and differential topology, algebra, and analysis. Dimension 4 is in between; both the high dimensional Whitney Trick and the low-dimensional geometric techniques are only partially successful. The need for our program is that these areas have diverged in the last several decades, to the extent that, often researchers in low/middle/high dimensional topology are not always aware of the current research/techniques in other dimensions. This program will, hopefully, lead to a synergy, benefiting both the experts and the new generation of early career researchers. The website for the event can be found at https://www.matrix-inst.org.au/events/interactions-between-topology-in-high-and-low-dimensions/

Complex Algebraic Geometry

ag.algebraic-geometry cv.complex-variables
2019-01-11 through 2019-01-13
University of California, San Diego
San Diego, CA; USA

Meeting Type: conference

Contact: see conference website

Description

none

Arithmetic of Shimura Varieties

ag.algebraic-geometry nt.number-theory
2019-01-13 through 2019-01-19
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Atelier PARI/GP

nt.number-theory ag.algebraic-geometry
2019-01-14 through 2019-01-18
Institut de Mathématiques de Bordeaux
Bordeaux; France

Meeting Type: software workshop

Contact: see conference website

Description

none

Trace functions over finite fields and their applications in analytic number theory

ag.algebraic-geometry nt.number-theory
2019-01-14 through 2019-01-18
ETH Zurich
Monte Verità; Switzerland

Meeting Type: winter school

Contact: see conference website

Description

none

FACARD - Frobenius Action in Commutative Algebra: Recent Developments

ac.commutative-algebra ag.algebraic-geometry
2019-01-16 through 2019-01-18
Institute of Mathematics, University of Barcelona
Barcelona; Spain

Meeting Type: workshop

Contact: Alessio Caminata, Santiago Zarzuela

Description

none

Birational Geometry and Moduli Spaces

ag.algebraic-geometry
2019-01-22 through 2019-05-24
MSRI
Berkeley, CA; USA

Meeting Type: research program

Contact: see conference website

Description

Birational Geometry and Moduli Spaces are two important areas of Algebraic Geometry that have recently witnessed a flurry of activity and substantial progress on many fundamental open questions. In this program we aim to bring together key researchers in these and related areas to highlight the recent exciting progress and to explore future avenues of research.

This program will focus on the following themes: Geometry and Derived Categories, Birational Algebraic Geometry, Moduli Spaces of Stable Varieties, Geometry in Characteristic p>0, and Applications of Algebraic Geometry: Elliptic Fibrations of Calabi-Yau Varieties in Geometry, Arithmetic and the Physics of String Theory

Derived Algebraic Geometry

ag.algebraic-geometry at.algebraic-topology nt.number-theory
2019-01-22 through 2019-05-24
MSRI
Berkeley, CA; USA

Meeting Type: research program

Contact: see conference website

Description

Derived algebraic geometry is an extension of algebraic geometry that provides a convenient framework for directly treating non-generic geometric situations (such as non-transverse intersections in intersection theory), in lieu of the more traditional perturbative approaches (such as the “moving” lemma). This direct approach, in addition to being conceptually satisfying, has the distinct advantage of preserving the symmetries of the situation, which makes it much more applicable. In particular, in recent years, such techniques have found applications in diverse areas of mathematics, ranging from arithmetic geometry, mathematical physics, geometric representation theory, and homotopy theory. This semester long program will be dedicated to exploring these directions further, and finding new connections.

Connections for Women: Derived Algebraic Geometry, Birational Geometry and Moduli Spaces

ag.algebraic-geometry nt.number-theory
2019-01-28 through 2019-01-30
MSRI (Mathematical Sciences Research Institute)
Berkeley, CA; USA

Meeting Type: conference

Contact: see conference website

Description

This workshop will be on different aspects of Algebraic Geometry relating Derived Algebraic Geometry and Birational Geometry. In particular the workshop will focus on connections to other branches of mathematics and open problems. There will be some colloquium style lectures as well as shorter research talks. The workshop is open to all.

Thematic month: Complex geometry

ag.algebraic-geometry
2019-01-28 through 2019-03-01
CIRM
Luminy; France

Meeting Type: conference

Contact: Erwan Rousseau, Andreas Höring

Description

The last years have seen important developments in the understanding of the geometry of complex algebraic varieties, and more generally Kählerian varieties. This session will aim at gathering experts at an international scale on very active areas of research : birational geometry and Hodge theory, singular metrics, hyperbolicity, surfaces of general type. This will be an opportunity to encourage young researchers to get involved in these promising developments.

Abelian varieties over finite fields

nt.number-theory ag.algebraic-geometry
2019-01-31 through 2019-02-03
ICERM
Providence, RI; USA

Meeting Type: software development workshop

Contact: see conference website

Description

This will be a hands-on workshop focused on a specific computational problem: enumerating all isomorphism classes of abelian varieties of of dimension g over a finite field of cardinality q, for a suitable range of integers g and q. Isogeny classes of abelian varieties over finite fields have been previously classified by Weil polynomials and can be found in the L-functions and Modular Form Database. The goal of this workshop is to refine this to the level of isomorphism classes, and, whenever possible, to construct explicit representatives for each isomorphism class. By exploiting recent theoretical and computational advances and assembling an appropriate team of experts, we hope to make rapid and substantial progress during this short, focused workshop and to have results available in advance of the conference on the Arithmetic of Low-dimensional Abelian Varieties that will take place at ICERM in June.

Introductory Workshop: Derived Algebraic Geometry and Birational Geometry and Moduli Spaces

ag.algebraic-geometry nt.number-theory
2019-01-31 through 2019-02-08
MSRI (Mathematical Sciences Research Institute)
Berkeley, CA; USA

Meeting Type: conference

Contact: see conference website

Description

The workshop will survey several areas of algebraic geometry, providing an introduction to the two main programs hosted by MSRI in Spring 2019. It will consist of 6 expository mini-courses and 8 separate lectures, each given by top experts in the field.

The focus of the workshop will be the recent progress in derived algebraic geometry, birational geometry and moduli spaces. The lectures will be aimed at a wide audience including advanced graduate students and postdocs with a background in algebraic geometry.

February 2019

Francophone Computer Algebra Days (Journées nationales de calcul formel)

ag.algebraic-geometry nt.number-theory
2019-02-04 through 2019-02-08
CIRM
Luminy; France

Meeting Type: research school

Contact: see conference website

Description

Computer Algebra refers to the study and design of algorithms for manipulating mathematical expressions and objects. It lies at the interface between Mathematics, Computer Science and various application fields. It covers a wide range of subjects, such as effective linear algebra, algorithmic number theory, integration and summation in closed form, differential and polynomial system solving, or special functions. ​ The French Computer Algebra community is internationally renowned for the excellence of its theoretical work. Several libraries produced by its members are part of mainstream software packages such as Maple or Sage. This success is notably due to the Journées nationales de calcul formel (JNCF), which are a remarkable opportunity for researchers to discuss recent and ongoing work with their peers.

​ Expected outcomes include:

  • A better integration of young researchers. The JNCF are an ideal opportunity for young researchers to present their results for the first time and also to get an overview of the various advances in Computer Algebra. This is especially important in the Computer Algebra community, where researchers need to build skills in both Computer Science and Mathematics.

  • New collaborations and interactions. The JNCF have traditionally been an opportunity to create successful collaborations between researchers from different parts of France. We now would like the JNCF to open to an international community, while remaining primarily French-speaking. The previous editions already included courses by colleagues from other European countries, and we intend to continue this trend. We also plan to better advertise the next JNCF in Mediterranean countries.

Geometry and Arithmetic of Surfaces

ag.algebraic-geometry nt.number-theory
2019-02-08 through 2019-02-10
University of Wisconsin
Madison, WI; USA

Meeting Type: workshop

Contact: Juliette Bruce, Wanlin Li

Description

Geometry and Arithmetic of Surfaces is a workshop for early career researchers (undergraduates, graduate students, post docs, etc.) being held at the University of Wisconsin - Madison, February 9-10, 2019. This workshop will focus on providing a diverse group of early career researchers the opportunity to learn about interesting cutting edge topics in the arithmetic and algebraic geometry of surfaces from a diverse set of prominent active researchers: Bianca Viray, Katrina Honigs, Anthony Várilly-Alvarado, and Jesse Kass.

There will be a limited amount of funding for junior participants. We expect to be able to provide partial travel support for some participants from within the United States. Accommodation for funded participants will be arranged by the organizers for the nights of Friday, February 8 and Saturday, February 9.

Early career researchers from generally underrepresented groups, in particular women and non-binary researchers, are strongly encouraged to apply, and will be given priority when it comes to funding decisions.

Free Computational Mathematics

nt.number-theory co.combinatorics ag.algebraic-geometry
2019-02-11 through 2019-02-15
CIRM
Luminy; France

Meeting Type: conference

Contact: see conference website

Description

The last decades have witnessed the emergence of a full ecosystem of open source software for (pure) mathematics, developed by overlapping international communities of researchers, teachers, engineers and amateurs. This ranges from specialized libraries (e.g. MPIR, LINBOX) to thematic systems (e.g. GAP, PARI, SINGULAR, xcas) to general purpose systems (e.g. Mathemagix, SAGE), via online databases (e.g. the OEIS, MATHHUB, or the LMFDB). This is part of the greater trend for Open and Reproducible Science, and is supported by the advancement of cross-discipline tools like the interactive computing environment JUPYTER. The involved communities are strong in Europe – specially so in France.

The main goal of this conference is community building and training :

  • Bringing together the various communities of users and developers of the ecosystem of (open source) (pure) mathematics software.
  • Give newcomers as well as experts an overview of this ecosystem : what the existing software systems are, what they can compute or solve, how they are developed and by whom, what the success stories and difficulties are.
  • Train newcomers as well as experts on using this ecosystem to solve their own problems.
  • Share perspectives and best practices, build a joint vision, and seek venues for tighter cooperation.
  • Encourage participants to get involved, especially women and more junior researchers, in particular by showcasing role models.

This conference will also be the closing event of OpenDreamKit, an H2020 European E-Infrastructure project lead by the organizers, and the occasion to present its outcomes.

Following a long trend of highly productive workshops within the various communities (e.g. the SAGE Days series), this conference will consist of :

  • five or six keynote talks delivering a variety of perspectives on the ecosystem.
  • Hands-on tutorials run by experts of the various systems.
  • Plenty of free time for interactions and collaborative work, self-organized through regular project planning sessions and progress reports

Winter School on Enumerative Geometry and Modular Forms

ag.algebraic-geometry
2019-02-11 through 2019-02-15
Goethe University Frankfurt am Main
Frankfurt am Main; Germany

Meeting Type: Winter School

Contact: see conference website

Description

none

Elliptic curves: arithmetic and computation

nt.number-theory
2019-02-11 through 2019-02-22
Universidad de la República
Montevideo; Uruguay

Meeting Type: CIMPA school

Contact: Valerio Talamanca

Description

The aim of this is school to introduce the participants to the arithmetic and computational aspects of the theory of elliptic curves. Elliptic curves lie at the crossroads of algebra, analysis, geometry and arithmetic. We will develop the theory of elliptic curves from its very beginning also providing an introductory course on algebraic curves and the Riemann Roch theorem. Topics that will be covered include: basic geometric and arithmetic results for elliptic curves over number fields and over finite fields, the Mordell-Weil theorem for elliptic curves, Galois representations attached to elliptic curves,. and the Birch and Swinnerton Dyer Conjecture. On the computational side we will run six hours of training sessions on PARI/GP and SAGE.

The Tenth International Conference on Matrix-Analytic Methods for Stochastic Models (MAM10)

pr.probability
2019-02-13 through 2019-02-15
University of Tasmania
Hobart, Tasmania; Australia

Meeting Type: conference

Contact: Malgorzata O'Reilly

Description

Matrix-Analytic Methods in Stochastic Models (MAM) conferences aim to bring together researchers working on the theoretical, algorithmic and methodological aspects of matrix-analytic methods in stochastic models and the applications of such mathematical research across a broad spectrum of fields, which includes computer science and engineering, telephony and communication networks, electrical and industrial engineering, operations research, management science, financial and risk analysis, bio-statistics, and evolution.

Higher Dimensional Arithmetic Geometry

nt.number-theory ag.algebraic-geometry
2019-02-18 through 2019-02-21
Kumamoto University
Kumamoto; Japan

Meeting Type: conference

Contact: Sho Tanimoto

Description

none

Braids, Resolvent Degree and Hilbert’s 13th Problem

ag.algebraic-geometry gt.geometric-topology nt.number-theory
2019-02-19 through 2019-02-21
IPAM
Los Angeles, CA; USA

Meeting Type: conference

Contact: see conference website

Description

Overview

HIL2019 web imageThe purpose of this workshop is to bring focused attention to Hilbert’s 13th problem, and to the broader notion of resolvent degree. While Abel’s 1824 theorem–that the general degree n polynomial is only solvable in radicals for n<4

is well known, less well known is Bring’s 1786 proof that a general quintic is solvable in algebraic functions of only one variable. Hilbert conjectured that for a general sextic, one needs algebraic functions of two variables, and that for a general degree 7 polynomial, one needs algebraic functions of three variables. More generally, it is natural to expect that as n → ∞ , so does the minimal number of variables needed to solve the general degree n polynomial. In a celebrated theorem, Arnol’d and Kolmogorov proved that, at the level of continuous functions, there is no local obstruction to reducing the number of variables to one. Thus, a resolution of Hilbert’s problem must lie deeper. Resolvent degree was introduced by Brauer in order to provide a rigorous statement of these conjectures. While no progress has yet been made on these conjectures, the study of resolvent degree is receiving renewed attention and an influx of ideas from related fields, including:

the theory of essential dimension
uniformization of moduli spaces
braid monodromy
p-adic Hodge theory

This workshop will bring together young and established researchers who work in these fields to explore topics related to Hilbert’s conjectures, to facilitate interaction between subdisciplines, and to lay the groundwork for future progress. The workshop will be organized around mini-courses by experts which will be aimed at 1) conveying the methods that can be brought to bear from each area, and 2) formulating problems concerning resolvent degree that seem particularly tractable using these methods.

Midwest Topology Seminar Winter 2019

gt.geometric-topology dg.differential-geometry at.algebraic-topology
2019-02-23 through 2019-02-23
University of Illinois, Urbana-Champaign
Urbana-Champaign, Illinois; USA

Meeting Type: conference

Contact: Dominic Culver, Vesna Stojanoska

Description

Another installment of the Midwest Topology Seminar to be held at the University of Illinois, Urbana-Champaign. More details forthcoming.

Non-Archimedean Geometry and Applications

ag.algebraic-geometry nt.number-theory
2019-02-24 through 2019-03-02
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Algebraic and Analytic Aspects of Automorphic Forms

ag.algebraic-geometry nt.number-theory rt.representation-theory
2019-02-25 through 2019-03-07
International Centre for Theoretical Sciences
Bengaluru; India

Meeting Type: school/workshop

Contact: see conference website

Description

The theory of automorphic forms is one of the frontier areas in mathematics, which links diverse areas such as representation theory of real and p-adic groups, theory of L-functions, and modular forms.

The algebraic and analytic aspects of the theory of automorphic forms are at the basis of much of modern number theory. The algebraic theory of automorphic forms broadly comprises of the study of automorphic representations of adelic groups, their L-functions, and also the study of their local components. The theory of group representations for real, p-adic, and adelic groups, is an actively pursued area of research and plays a central role in modern number theory. In the analytic theory of automorphic forms, the study of L-functions is one of the most important topics, together with Fourier coefficients of modular forms.

The workshop will be from 25th of February to 1st of March, 2019, and the discussion meeting from 4th of March to 7th of March, 2019. The workshop will consist of the following 4 courses, each of 6 hours duration, with some extra time devoted to tutorials.

  • Prof. Anna von Pippich (TU Darmstadt, Germany): “Theory of Eisenstein series”. Pippich will review the theory of Eisenstein series, and their significance in the spectral theory of automorphic forms.
  • Prof. Ameya Pitale (University of Oklahoma, USA): “Siegel modular forms: Classical and adelic aspects”. Pitale will discuss Siegel modular forms, both from the classical viewpoint of functions on Siegel upper half spaces as well as the modern viewpoint of automorphic representations of the symplectic group.
  • Prof. Vincent Sécherre (Université de Versailles, France): “ℓ-Modular representations of p-adic groups”. Sécherre will discuss the theory of smooth representations of p-adic groups with coefficients in an algebraically closed field of characteristic ℓ, where ℓ is different from 0 and p.
  • Prof. Shunsuke Yamana (Kyoto University, Japan): “L-functions and theta correspondence for classical groups”. Yamana will discuss his paper Invent. Math. 196 (2014), no. 3, 651–732, beginning with an introduction to theta correspondence.

The discussion meeting will gather together several national and international speakers to get a sense of some of the current directions in this subject without making it overtly technical.

March 2019

Arizona Winter School: Topology and Arithmetic

ag.algebraic-geometry at.algebraic-topology nt.number-theory
2019-03-02 through 2019-03-06
University of Arizona
Tucson, AZ; USA

Meeting Type: conference

Contact: see conference website

Description

Speakers:

  • Michael Hopkins
  • Jacob Lurie
  • Matthew Morrow
  • Kirsten Wickelgren

Hawaii Number Theory 2019 (HINT)

nt.number-theory
2019-03-18 through 2019-03-21
University of Hawaii, Manoa
Honolulu, HI; USA

Meeting Type: conference

Contact: see conference website

Description

Hawaii Number Theory 2019 (HINT) aims to bring together a wide variety of number theorists to enhance collaboration and community. Right after HINT is the AMS Spring Central and Western Joint Sectional Meeting, also to be held at UH Mānoa. So come join us for a week of number theory in Hawaiʻi nei.

Women in Homotopy Theory and Algebraic Geometry II

ag.algebraic-geometry at.algebraic-topology
2019-03-20 through 2019-03-22
Freie Universitaet Berlin
Berlin; Germany

Meeting Type: workshop

Contact: Joana Cirici, Victoria Hoskins, Oliver Roendigs

Description

This workshop is dedicated to the promotion of female researchers in the field of homotopy theory and algebraic geometry. The main aim of this workshop is to provide a platform for female researchers (ranging from graduate students to senior experts) to present their work in a friendly environment which stimulates future collaborations. Male participants are very welcome and encouraged to attend. Invited speakers are:

  • Natàlia Castellana (Universitat Autònoma de Barcelona)
  • Frances Kirwan (University of Oxford)
  • Sarah Whitehouse (University of Sheffield)
  • Susanna Zimmermann (Université d'Angers)

This workshop is supported by the German Research Foundation through the priority program SPP 1786.

Cohomology of Arithmetic Groups, Lattices and Number Theory: Geometric and Computational Viewpoint

ag.algebraic-geometry gr.group-theory kt.k-theory-and-homology nt.number-theory rt.representation-theory
2019-03-25 through 2019-03-29
CIRM
Luminy; France

Meeting Type: conference

Contact: see conference website

Description

The cohomology of arithmetic groups sits squarely at the intersection of several fields of mathematics. For example, it connects to number theory and arithmetic geometry via Galois representations and Hecke operators, and to representation theory, via its relationship to automorphic forms and automorphic representations. It also has deep connections with geometry, topology, and algebra, through its connections with algebraic K-theory, locally symmetric spaces, reduction theory, and lattices. Explicit calculations have played an increasingly important role in the theoretical development of the subject and its applications. For example, explicitly computing the cohomology gives tools to formulate conjectures about automorphic forms and special values of L-functions, and to try to understand the increasing influence in number theory of the torsion in cohomology. As the scale and complexity of the calculations have increased it has become more and more common for such computations to be performed with the aid of computers. This CIRM conference will bring together international experts with diverse skill sets, and expertise in computational techniques relevant to such calculations and their applications to cohomology of groups, algebraic K-theory, arithmetic geometry, and lattices. The main goals are to foster new collaborations, to introduce young researchers to these topics, and to broaden our theoretical knowledge with a view to extending the scope of computer aided calculations in this area.

Derived algebraic geometry and its applications

ag.algebraic-geometry at.algebraic-topology mp.mathematical-physics nt.number-theory rt.representation-theory
2019-03-25 through 2019-03-29
MSRI (Mathematical Sciences Research Institute)
Berkeley, CA; USA

Meeting Type: conference

Contact: see conference website

Description

This workshop will bring together researchers at various frontiers, including arithmetic geometry, representation theory, mathematical physics, and homotopy theory, where derived algebraic geometry has had recent impact. The aim will be to explain the ideas and tools behind recent progress and to advertise appealing questions. A focus will be on moduli spaces, for example of principal bundles with decorations as arise in many settings, and their natural structures.

April 2019

Geometry at Infinity

dg.differential-geometry gt.geometric-topology
2019-04-01 through 2019-04-05
University of Muenster
Muenster; Germany

Meeting Type: conference

Contact: Bernhard Hanke

Description

This is the first of two international conferences representing the full scope of the DFG priority programme "Geometry at Infinity", a research network in differential geometry, geometric topology, and global analysis based at more than 20 German and Swiss universities. Organizers: Christian Bär (Potsdam), Bernhard Hanke (Augsburg), Anna Wienhard (Heidelberg), Burkhard Wilking (Münster).

International Conference on Mathematical Methods in Physics

gm.general-mathematics mp.mathematical-physics
2019-04-01 through 2019-04-05
Ryad Mogador Kasbah Hotel, Marrakech; Morocco

Meeting Type: conference

Contact: Zouhair Mouayn

Description

The 2019 edition of ICMMP will honor the memory of Professor Ahmed Intissar. After obtaining his PhD at the Massachusetts Institute of Technology (MIT) in 1985, Professor Intissar returned to his native Morocco. Over the years, he supervised several PhD thesis, creating a school of mathematics which is worldwide recognized for fundamental contributions both in mathematics and mathematical physics. His students, friends and collaborators will always remember him for his teaching, his science and his charismatic personality.

The conference will bring together leading experts and research scholars to exchange and share their experience and research results on all aspects of mathematical physics and to promote transference of knowledge at the crossroads of mathematics and physics. There will be plenary sessions (30 to 45min), short talks and posters for student presentations. The scope of the conference will be quite broad, including in particular the following topics: polyanalytic function theory, harmonic analysis, representation theory and quantization, Clifford analysis and applications, coherent states, time-frequency analysis and wavelets, orthogonal polynomials, special functions and q-analogues, Hopf algebras and quantum groups, geometric mechanics and symmetry, exact solvable systems, Spectral theory and quantum systems. With the goal of encouraging communication and collaborative research between the participants, a feature of ICMMP2019 will be the inclusion of specific time-slots for scientific discussion.

Hot Topics: Recent progress in Langlands Program

ag.algebraic-geometry nt.number-theory rt.representation-theory
2019-04-08 through 2019-04-12
MSRI
Berkeley, CA; USA

Meeting Type: conference

Contact: see conference website

Description

The purpose of the workshop is to explain Vincent Lafforgue's ground breaking work, constructing the automorphic to Galois direction of the Langlands correspondence for function fields. There will also be a number of talks on more recent developments and related results.

Derivators

at.algebraic-topology ct.category-theory rt.representation-theory
2019-04-09 through 2019-04-12
University of Regensburg
Regensburg; Germany

Meeting Type: workshop

Contact: see conference website

Description

none

The fifth mini symposium of the Roman Number Theory Association

nt.number-theory
2019-04-10 through 2019-04-12
Università Roma Tre
Rome; Italy

Meeting Type: conference

Contact: Fabrizio Barroero, Marina Monsurrò, Francesco Pappalardi, Valerio Talamanca, Alessandro Zaccagnini

Description

This is a meeting organised by the Roman Number Theory Association.

The venue

The symposium will take place in the Arigiletum situated in Via Madonna dei Monti 40. This historical building host the Department of Architectures of Roma Tre University and is located nearby Via dei Fori Imperiali in the historical center of Rome.

Geometric and Analytic Methods for Rational Points

ag.algebraic-geometry nt.number-theory
2019-04-15 through 2019-04-19
CIRM
Luminy; France

Meeting Type: spring school

Contact: see conference website

Description

This week is an introductory school to prepare junior participants for the 3-month thematic program "Reinventing rational points" at the Institut Henri Poincaré (April–July 2019). The study of rational points uses a rich mix of methods ranging from algebraic geometry to analytic number theory and has a constantly growing tool kit. The mini-courses will be an introduction to this broad area with an emphasis on new methods and developments. Among the themes to be covered are: Galois cohomology and arithmetic duality theorems; the Brauer group of an algebraic variety; the Brauer-Manin obstruction and descent obstructions to local-to-global principles for rational and integral points, and for zero-cycles; interactions of analytic number theory and geometry, applications of the circle method, sieve methods and additive combinatorics; rational points in families of varieties over local and global fields; new approaches to counting points and varieties. We plan to discuss the state of the art in the research on the Batyrev–Manin principle on the growth of rational points and the Colliot-Thélène conjecture on the Brauer–Manin obstruction, their versions, interrelations and generalisations.

Reinventing Rational Points

ag.algebraic-geometry nt.number-theory
2019-04-15 through 2019-07-12
Institut Henri Poincare
Paris; France

Meeting Type: thematic program

Contact: see conference website

Description

Rational points on algebraic varieties represent a modern way of thinking about one of the oldest problems in mathematics: integral and rational solutions of Diophantine equations. In arithmetic geometry one views rational points in the context of geometric properties of underlying algebraic varieties. In analytic number theory many different analytic techniques are used to count the number of rational or integral points, and so understand their “average” behaviour. In logic, rational points feature prominently in the work on Hilbert’s Tenth Problem over Q, which asks for an algorithm to decide the existence of rational solutions to all Diophantine equations. Here one searches for examples of “weird” or “far from average” behaviour of rational points.

There is a large body of conjectures that describe the behaviour of rational points. They include various versions of Mazur’s conjectures on the real topological closure of the set of rational points. A related circle of conjectures deals with the Brauer–Manin obstruction designed to describe the closure of the set of rational points inside the topological space of adelic points. It is conjectured that the Brauer–Manin obstruction should exactly describe this closure for certain classes of algebraic varieties such as rationally connected varieties, K3 surfaces and algebraic curves. Supportive heuristic and theoretical evidence for these difficult conjectures is slowly emerging from the work of many people. The Batyrev–Manin conjectures on the growth of rational points of bounded height have received much attention by analytic number theorists. New techniques that have revolutionised analytic number theory, such as additive combinatorics (Green, Tao, Ziegler) or arithmetic invariant theory (Bhargava, Gross), have made it possible to solve some of the long standing problems in arithmetic geometry. A new feature in recent years has been an increased interaction between the analytic and geometric thinking: questions motivated by various counting problems give rise to novel geometric ideas, whereas conjectures coming from geometry open up new fields of investigation for analytic number theorists.

The aim of this thematic period is to bring together senior and junior mathematicians from the various domains related to rational points to foster new interactions and new research.

British Algebraic Geometry Meeting

ag.algebraic-geometry
2019-04-24 through 2019-04-26
Liverpool University
Liverpool; UK

Meeting Type: conference

Contact: Julius Ross

Description

BrAG is an established series of regular meetings of British algebraic geometers. Our goal is to create a series that further strengthens the British algebraic geometry community, and that integrates postgraduate students and young researchers. The meetings will feature a number of pre-talks for graduate students, a poster session, and will include plenty of time for informal interactions between the participants.

3rd International Congress: Algebra, Number Theory and Applications April 24-27, 2019 OUJDA MOROCCO

ac.commutative-algebra nt.number-theory
2019-04-24 through 2019-04-27
Mohammed First University, Science Faculty
Oujda; Morocco

Meeting Type: conference

Contact: Abdelmalek Azizi, Abdelkader Zekhnini, Mohammed Taous

Description

The purpose of this meeting is to introduce young researchers to some of the most attractive research areas of algebra, number theory and their applications, to present the latest contributions and achievements in these areas. This scientific event will be animated by great specialists as the Bourbaki group's member J. Osterlé and it will be dedicated, among others, to our former teachers : Dr. Ahmed Kerkour from Morocco and Dr. Gunther Frei from Switzerland.

Simons Symposium: p-adic Hodge theory

ag.algebraic-geometry nt.number-theory
2019-04-28 through 2019-05-04
Schloss Elmau; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Tropical Geometry: New Directions

ag.algebraic-geometry co.combinatorics
2019-04-28 through 2019-05-04
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none

May 2019

Definability and decidability problems in number theory

ag.algebraic-geometry lo.logic nt.number-theory
2019-05-06 through 2019-05-10
AIM (American Institute of Mathematics)
San Jose, CA; USA

Meeting Type: conference

Contact: see conference website

Description

This workshop, sponsored by AIM and the NSF, will be devoted to definability and decidability problems in number theory.

The main topics for the workshop are

  • H10 and existential definability of Z for Q and big subrings of Q.
  • Decidability of the first-order and the existential theory in finite and infinite algebraic extensions of Q. The workshop will bring together mathematicians working in algebraic geometry, number theory, model theory and computability theory to work on problems in decidability/computability and definability in number theory.
  • Definability of valuation rings over infinite algebraic extensions of Q and over function fields.

The workshop will differ from typical conferences in some regards. Participants will be invited to suggest open problems and questions before the workshop begins, and these will be posted on the workshop website. These include specific problems on which there is hope of making some progress during the workshop, as well as more ambitious problems which may influence the future activity of the field. Lectures at the workshop will be focused on familiarizing the participants with the background material leading up to specific problems, and the schedule will include discussion and parallel working sessions.

Recent Progress in Moduli Theory

ag.algebraic-geometry
2019-05-06 through 2019-05-10
MSRI
Berkeley, CA; USA

Meeting Type: conference

Contact: see conference website

Description

This workshop will be focused on presenting the latest developments in moduli theory, including (but not restricted to) recent advances in compactifications of moduli spaces of higher dimensional varieties, the birational geometry of moduli spaces, abstract methods including stacks, stability criteria, and applications in other disciplines.

INdAM special research activity in Padova on "p-adic Langlands program"

nt.number-theory
2019-05-12 through 2019-07-12
Università degli Studi di Padova
Padova; Italy

Meeting Type: Special research bimester

Contact: see conference website

Description

none

Curves and groups in families

ag.algebraic-geometry nt.number-theory
2019-05-13 through 2019-05-17
Henri Lebesgue Center for Mathematics
Rennes; France

Meeting Type: summer school

Contact: see conference website

Description

This conference will gather researchers and students around two important topics in mixed and characteristic p geometry : the computation of stable models of curves, and the geometry of groups and torsors in characteristic p.

Knots and Braids in Norway

at.algebraic-topology gr.group-theory gt.geometric-topology
2019-05-13 through 2019-05-17
NTNU
Trondheim; Norway

Meeting Type: Workshop

Contact: Rachael Boyd, Tara Brendle, Markus Szymik

Description

Dear colleagues,

we are excited to announce a school and workshop

Knots and Braids in Norway (KaBiN)

to be held at NTNU Norwegian University of Science and Technology in Trondheim from May 13 to 17, 2019.

This meeting aims to bring together people with varying points of view who are interested in knots and braids. The school is aimed at Ph.D. students and will cover algebraic aspects and moduli spaces of knots. The workshop will give glimpses into current research directions. We plan for the schedule to allow ample time for discussions and collaboration among participants.

The school consists of two lecture series by:

Ryan Budney (University of Victoria)
Alissa Crans (Loyola Marymount University)

The current list of confirmed workshop speakers is:

Corey Bregman (Brandeis University)
Celeste Damiani (University of Leeds)
Kim Frøyshov (University of Oslo)
Richard Hepworth (University of Aberdeen) 
Victoria Lebed (Université de Caen Normandie)
Arnau Mortier (Dublin City University) 
Mark Powell (Durham University)
Arunima Ray (Max-Planck-Institut für Mathematik Bonn)
Arthur Soulié (Université de Strasbourg)

All interested to come should register via the website, indicating if they would like to contribute and if they need financial support. Priority will be given to graduate students, recent PhDs, and underrepresented minorities. Funds from the project "Pure Mathematics in Norway" of the Bergen Research Foundation with the collaboration of the Tromsø Research Foundation support this event.

The deadline is January 31, 2019. Please apply as early as possible to facilitate our planning process.

https://sites.google.com/view/knots-and-braids-in-norway/home

Best regards,

the organisers

Rachael Boyd (NTNU) Tara Brendle (University of Glasgow) Markus Szymik (NTNU)

Midwest Topology Seminar Spring 2019

at.algebraic-topology gt.geometric-topology
2019-05-18 through 2019-05-19
Michigan State University
East Lansing; USA

Meeting Type: conference

Contact: Teena Gerhardt, Gabe Angelini-Knoll

Description

none

Rational points on Fano and similar varieties

ag.algebraic-geometry nt.number-theory
2019-05-20 through 2019-05-24
Paris; France

Meeting Type: conference

Contact: see conference website

Description

none

p-arithmetic of automorphic forms: a conference in honour of Jacques Tilouine

nt.number-theory
2019-05-27 through 2019-05-31
University Paris 13
Paris (Villetaneuse); France

Meeting Type: conference

Contact: Boyer Pascal, Conti Andrea, Mokrane Farid

Description

Introduced at the end of the 1960s, the Langlands Program, whose inspiration comes from class field theory in the early 20th century, has produced spectacular and numerous results in the last 20 years.

The most efficient techniques include the intensive use of families of p-adic automorphic forms and the study of deformations of Galois representations. They have led to remarkable arithmetic applications such as the proofs of the Artin conjecture for GL(2) and of the Sato-Tate theorem.

On the occasion of the 60th birthday of J. Tilouine, we gather some of the best experts whose research interacts with those of Jacques.

Souriau 2019

dg.differential-geometry mp.mathematical-physics sg.symplectic-geometry
2019-05-27 through 2019-05-31
University of Paris-Diderot
Paris; France

Meeting Type: Conference

Contact: Jean-Jacques Szczeciniarz, Patrick Iglesias-Zemmour

Description

In May 1969 the groundbreaking book of Jean-Marie Souriau appeared, Structure des Systèmes Dynamiques. We will celebrate, in 2019, the jubilee of its publication, with a conference in honour of the work of this great scientist. The subjects are : Symplectic Geometry/Mechanics, Relativity and Cosmology, Geometric Quantization, Diffeology, and anything related to these domains.

Integrable Probability summer school

mp.mathematical-physics pr.probability
2019-05-27 through 2019-06-08
University of Virginia
Charlottesville, Virginia; USA

Meeting Type: summer school

Contact: Leonid Petrov

Description

The NSF funded Focused Research Group on Integrable Probability is organizing a Summer School at University of Virginia, May 27 to June 8, 2019. The school is aimed to educate graduate students and young researchers in recent trends around Integrable Probability - a rapidly developing field at the interface of probability / mathematical physics / statistical physics on the one hand, and representation theory / integrable systems on the other.

There will be 4 mini-courses:

Week 1 - Dmitry Chelkak (École Normale Supérieure, Paris, France) - Ole Warnaar (University of Queensland, Brisbane, Australia) Week 2 - Tomohiro Sasamoto (Tokyo Institute of Technology, Tokyo, Japan) - Paul Zinn-Justin (University of Melbourne, Melbourne, Australia)

We have some NSF support to cover accommodation at a University of Virginia residence hall, and to partially contribute towards travel expenses (the travel support amount depends on the number of interested participants). Preference will be given to graduate students, postdocs, early career researchers, and members of underrepresented groups.

Deadlines: - To request residence hall accommodation: January 5, 2019 - To request financial support: March 1, 2019 - General registration: April 20, 2019

More information and registration: http://vipss.int-prob.org/

Scientific Committee: Jinho Baik, Alexei Borodin, Ivan Corwin, Vadim Gorin, Leo Petrov

Organizers: Leo Petrov, Axel Saenz

Padova school on Serre conjectures and the p-adic Langlands program

nt.number-theory
2019-05-27 through 2019-06-14
Università degli Studi di Padova
Padova; Italy

Meeting Type: Spring school

Contact: see conference website

Description

none

Thematic Program in Commutative Algebra and its Interaction with Algebraic Geometry

ac.commutative-algebra ag.algebraic-geometry
2019-05-28 through 2019-06-21
University of Notre Dame
South Bend, IN; USA

Meeting Type: undergraduate school, graduate school, conference

Contact: see conference website

Description

In the Summer 2019, there will be a four-week long Thematic Program in Commutative Algebra and its Interaction with Algebraic Geometry, on the occasion of Bernd Ulrich’s 65th birthday. It will be held at the Center for Mathematics of the University of Notre Dame from Tuesday, May 28 until Friday, June 21, 2019. The organizers of the program are Craig Huneke, Sonja Mapes, Juan Migliore, Claudia Polini, and Claudiu Raicu.

  1. Undergraduate school Tuesday, May 28–Saturday, June 1, 2019 3 courses with afternoon exercise sessions
  2. MSRI graduate school and Macaulay2 workshop Monday June 3– Friday June 14, 2019 4 courses with exercise sessions plus a Macaulay2 workshop
  3. International conference in honor of Bernd Ulrich Sunday June 16–Friday June 21, 2019 4 talks per day (2 in the morning, 2 in the afternoon) 30 minutes Q&A each day (only for peridoctoral students) two poster sessions

June 2019

Arithmetic of low-dimensional abelian varieties

ag.algebraic-geometry nt.number-theory
2019-06-03 through 2019-06-07
ICERM
Providence, RI; USA

Meeting Type: conference

Contact: Andrew V. Sutherland

Description

In this workshop, we will explore a number of themes in the arithmetic of abelian varieties of low dimension (typically dimension 2--4), with a focus on computational aspects. Topics will include the study of torsion points, Galois representations, endomorphism rings, Sato-Tate distributions, Mumford-Tate groups, complex and p-adic analytic aspects, L-functions, rational points, and so on. We also seek to classify and tabulate these objects, in particular to understand explicitly the underlying moduli spaces (with specified polarization, endomorphism, and torsion structure), and to find examples of abelian varieties exhibiting special behavior. Finally, we will pursue connections with related areas, including the theory of modular forms, related algebraic varieties (e.g., K3 surfaces), and special values of L-functions.

Our goal is for the workshop to bring together researchers working on abelian varieties in a number of facets to establish collaborations, develop algorithms, and stimulate further research.

Representation Theory and D-modules

rt.representation-theory ag.algebraic-geometry
2019-06-03 through 2019-06-07
Centre Henri Lebesgue-Université de Rennes I
Rennes; France

Meeting Type: conference

Contact: Michel Gros, Thierry Levasseur, Tobias Schmidt

Description

The interplay between D-modules and representation theory has became one of the key features in representation theory in the recent years. The aim of the conference is to report on recent progress and to present some new directions concerning this relationship, especially those motivated by applications to the p-adic and to the geometric Langlands program.

Arithmetic, Geometry, Cryptography and Coding Theory

nt.number-theory ag.algebraic-geometry
2019-06-10 through 2019-06-14
CIRM
Luminy; France

Meeting Type: conference

Contact: see conference website

Description

Our goal is to organize a conference devoted to interactions between pure mathematics, in particular arithmetic and algebraic geometry, and the information theory, especially cryptography and coding theory. This conference will be the seventeenth edition, with the first one held in 1987, that traditionally reunites some of the best specialists in the domains of arithmetic, geometry and information theory. The corresponding international community is very active with all of the concerned domains changing rapidly over time.

The conference is thus an important occasion for young mathematicians (graduate students and post-docs) to interact with established researchers in order to exchange new ideas.

The conference talks will be devoted to recent advances in arithmetic and algebraic geometry, and number theory, with a special accent on algorithmic and effective results and applications of these fields to the information theory.

The conference will last one week and will be organized as follows :

  • One or two plenary talks per day at the beginning of each session. They will be given by established researchers, some of them new to the established AGC2T community, so that that new emerging topics can be introduced, that may give rise to new applications of arithmetic or algebraic geometry to the information theory.
  • Shorter specialized talks, often delivered by young mathematicians.

As with the previous editions of the AGC2T, we would like to publish the acts of the conference as a special volume of the Contemporary Mathematics collection of the AMS.

Conference Topics

  • Number theory, asymptotic properties of families of global fields, arithmetic statistics, L-functions.
  • Arithmetic geometry, algebraic curves over finite fields or number fields, abelian varieties : point counting, the invariant theory and classification of curves.
  • Coding theory, algebraic-geometric codes constructed from curves and higher dimensional varieties, decoding algorithms. ​ - Cryptography, elliptic curves and abelian varieties : the discrete logarithm problem, pairings, explicit computation of isogenies, multiplication over finite fields, APN functions, bent and hyper-bent funtions.

Ideals, Varieties, Applications: Celebrating the Influence of David Cox

nt.number-theory ag.algebraic-geometry
2019-06-10 through 2019-06-14
Amherst College
Amherst, MA; USA

Meeting Type: conference

Contact: see conference website

Description

none

Geometry and Arithmetic of Algebraic Varieties

nt.number-theory ag.algebraic-geometry
2019-06-11 through 2019-06-14
Bonn; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Explicit methods in arithmetic geometry in characteristic p

nt.number-theory ag.algebraic-geometry
2019-06-16 through 2019-06-22
the Whispering Pines Conference Center
West Greenwich, Rhode Island; USA

Meeting Type: conference

Contact: see conference website

Description

The AMS’s Mathematics Research Communities (MRC) are a professional development program offering early-career mathematicians a rich array of opportunities to develop collaboration skills, build a network focused in an active research domain, and receive mentoring from leaders in that area. Funded through a generous three-year grant from the National Science Foundation, MRC is a year-long experience that includes:

Intensive one-week, hands-on research conferences in the summer;
Special Sessions at the AMS-MAA Joint Mathematics Meetings in the January following the summer conferences;
Guidance in career building;
Follow-up small-group collaborations;
Longer-term opportunities for collaboration and community building among the participants;

Over time, each participant is expected to provide feedback regarding career development and the impact of the MRC program.

Women, underrepresented minorities, and individuals from various types of institutions across the country are all encouraged to apply.

The focus of this MRC will be on problems in arithmetic geometry over fields of positive characteristic p that are amenable to an explicit approach, including the construction of examples, as well as computational exploration. Compared to algebraic geometry in characteristic 0, studying varieties over fields of characteristic p comes with new challenges (such as the failure of generic smoothness and classical vanishing theorems), but also with additional structure (such as the Frobenius morphism and point-counts over finite fields) that can be exploited. This often leads to interesting arithmetic considerations: possible topics for the workshop include isogeny classes of abelian varieties over finite fields, Galois covers of curves and lifting problems, and arithmetic dynamics.

To reflect the inherent interdisciplinary nature of arithmetic geometry, we invite early-career mathematicians with a wide range of backgrounds in number theory, algebraic geometry, and other subjects that intersect these fruitfully, such as dynamics and commutative algebra. During the workshop, the participants will formulate and investigate open problems around areas of current interest in small collaborative groups. They will benefit from the mentorship of a diverse group of senior arithmetic geometers, and from activities tailored to junior researchers. For instance, there will be two problem brainstorming sessions (at the beginning and the end), expository talks on key techniques (such as recent computational advances), and career-related group discussions.

17TH SCHOOL ON INTERACTIONS BETWEEN DYNAMICAL SYSTEMS AND PARTIAL DIFFERENTIAL EQUATIONS (JISD2019)

ds.dynamical-systems
2019-06-17 through 2019-06-21
Centre de Recerca Matemàtica
Barcelona / Barcelona; Spain

Meeting Type: Summer School

Contact: see conference website

Description

Presentation

The "School on Interactions between Dynamical Systems and Partial Differential Equations" is an international summer school that has taken place at the Facultat de Matemàtiques i Estadística of the Universitat Politècnica de Catalunya (UPC) every summer since 2002. Since 2017 it has taken place at the Centre de Recerca Matemàtica. It is an annual meeting between scientists dedicated to Dynamical Systems and/or to PDEs to exchange knowledge and methods which may help to study new leading border problems in these two fields of mathematics. The conference is aimed at researchers from any country, as well as at local researchers. It consists of four advanced courses of about 6 hours each, complemented by some seminar talks as well as communications and posters by young attending researchers.

JISD former editions

Lecturers

Maria Colombo, École Polytechnique Fédérale de Lausanne, Switzerland

Gérard Iooss, Université Côte d'Azur and IUF, France

Yannick Sire, Johns Hopkins University, EEUU

Chongchun Zeng, Georgia Institute of Technology, EEUU Organizing Committee

Xavier Cabré​ ICREA and ​Universitat Politècnica de Catalunya Gyula Csato BGSMath and Universitat Politècnica de Catalunya Amadeu Delshams​ ​Universitat Politècnica de Catalunya ​Marcel Guàrdia​ ​​Universitat Politècnica de Catalunya Tere M. Seara​ ​Universitat Politècnica de Catalunya Scientific Committee

Scott Amstrong Université Paris - Dauphine​ Jean Pierre Eckmann ​ ​Université de Genève ​Jean-Michel Roquejoffre ​Paul Sabatier University ​Susanna Terracini ​Università de Torino

Poster session

If you wish to present a poster, please submit the following form before April 7th, 2019. Resultions will be send before April 29th, 2019.

Please note that submitting a proposal does not exempt the applicant from having to register to the school.

Application form

Grants

  • Only applications from pre-registered participants will be accepted

In order to increase the number of young researchers participating in this activity, the CRM announces a call for those participants interested in taking part in this activity. This grant includes a reduced registration fee and housing in a shared apartment on campus from June 16th to June 22nd, 2019.

Application Form

Application deadline for grants: April 7th, 2019 (Resolutions will be sent before April 29th)​

EMS:

The EMS offers some travel grants to young mathematicians from less-favoured regions within the geographical area of EMS membership for presenting results at conferences or attending courses, or for research stays in foreign countries, normally up to a maximum of 900 euros in each case or 500 euros for trips within Europe.

Eligible researchers should use this online form​ in order to apply for travel grants.

Registration

Early bird registration fee: 250€ (until May 19th, 2019) Regular registration fee: 300€

Deadline for registration: June 2nd, 2019 Registration includes: Documentation package, coffee breaks and lunches.

Refund policy: The registration fee depends on the date of the payment. Cancellations received 1 month before the start of the activity will incur in an administrative fee of 50% of the total amount. Cancellations received less than one month prior to the start of the activity are not refundable.​

You will be able to pay by card or bank transfer through the on-line registration system.

Arithmetic, geometry, and modular forms: a conference in honour of Bill Duke

ag.algebraic-geometry nt.number-theory
2019-06-17 through 2019-06-21
ETH
Zurich; Switzerland

Meeting Type: conference

Contact: see conference website

Description

none

Microlocal Analysis and Applications

ap.analysis-of-pdes
2019-06-17 through 2019-06-21
Fudan University
Shanghai; China

Meeting Type: conference

Contact: Jared Wunsch

Description

Microlocal analysis originated in the 1950s from the use of Fourier transform techniques in the study of variable-coefficient PDEs; its intellectual roots lie in geometric optics and the WKB approximation. The field took on a coherent identity starting in the 1960s with the development of pseudodifferential and, later, Fourier integral operators as fundamental tools. Since then, microlocal analysis has seen a remarkable variety of applications across pure and applied mathematics and physics. Within the last several years, the field has witnessed both striking breakthroughs on known microlocal problems and spectacular new results in areas where microlocal analysis had not previously been viewed as a natural tool. The conference will explore applications in areas as diverse as inverse problems, general relativity, classical dynamics, and quantum chaos, and should be of interest to researchers in many areas of PDE, geometry, and mathematical physics.

The conference will be preceded by a two-day minicourse on June 14-15, aimed at postdocs and advanced graduate students, offering a crash mini-course in the foundations of microlocal analysis, as well as an introduction to its applications in inverse problems, spectral theory, and evolution equations.

his event is funded by the China National Natural Science Foundation and the Shanghai Center for Mathematical Sciences. Some financial support for lodging will be available for junior participants. Some funding is available from the US NSF for partial support of travel and lodging for junior US participants. Priority for support will be given to graduate students and recent PhDs. Women mathematicians and members of other under-represented groups are especially encouraged to apply for support.

Arithmetic Geometry in Carthage

ag.algebraic-geometry nt.number-theory
2019-06-17 through 2019-06-28
Tunisian Academy Beit al-Hikma
Carthage (Tunis); Tunisia

Meeting Type: Summer School (June 17-21, 2019) & Conference (June 24-28, 2019)

Contact: Ahmed Abbes

Description

A two week program on arithmetic geometry will take place in Carthage in the city of Tunis (Tunisia), from June 17 to 28, 2019. It will focus on a number of areas of important progress over the last three or four years notably: p-adic Hodge theory; p-adic Langlands program; ramification of étale l-adic sheaves; special values of L functions and automorphic and motivic periods and Conjectures of Deligne, Beilinson, Gan-Gross-Prasad.

The first week will be devoted to a summer school and the second week to a conference. The summer school will take place from June 17 to 21, 2019. It will consist of 5 courses of three hours each and few lectures by junior researchers on topics close to the courses. The conference will take place from June 24 to 28, 2019. It will consist of 20 lectures. Registration on the web is mandatory both for the Summer School and the Conference.

Biology, Analysis, Geometry, Energies, Links: A Program on Low-dimensional Topology, Geometry, and Applications

gt.geometric-topology
2019-06-17 through 2019-06-28
IMA (Institute for Mathematics and its Applications)
Minnestoa, MN; USA

Meeting Type: 1 week summer school followed by 1 week workshop

Contact: Simon Blatt, Elizabeth Denne, Philipp Reiter, Armin Schikorra

Description

We would like to announce a two week program on Low-dimensional topology, geometry, and applications to be held at the IMA (Minnesota) in June 2019. In the first week (17 – 22 June), we will run a summer school targeted at (but not restricted to) PhD students and postdocs. There will be four courses given by

  • Jun O'Hara (Chiba, harmonic analysis)
  • Peter Schröder (Caltech, discrete differential geometry)
  • Jennifer Schultens (UC Davis, 3-manifolds)
  • Gert van der Heijden (UC London, nonlinear mechanics)

as well as a special lecture by Ken Millett (UCSB, microbiology).

In the second week (24 – 28 June) there will be a workshop providing a platform to present the most recent developments in the fields presented at the summer school.

Please register at the IMA website. Limited travel support for young participants may be available.

The organizing committee: Simon Blatt, Elizabeth Denne, Philipp Reiter, Armin Schikorra

IMA Minnesota 207 Church Street SE Minneapolis, MN 55455 United States

More information: https://www.ima.umn.edu/2018-2019/SW6.17-28.19

CMI-HIMR Summer School in Computational Number Theory

ag.algebraic-geometry nt.number-theory
2019-06-17 through 2019-06-28
University of Bristol
Bristol; UK

Meeting Type: summer school

Contact: Jennifer Balakrishnan, Tim Dokchitser

Description

none

Copenhagen SYM 10 years anniversary

oa.operator-algebras gt.geometric-topology at.algebraic-topology
2019-06-24 through 2019-06-28
University of Copenhagen
Copenhagen; Denmark

Meeting Type: conference

Contact: Jesper Grodal, Ryszard Nest, Nathalie Wahl

Description

The center for Symmetry and Deformation is celebrating its 10 years anniversary with a conference. More info can be found on the webpage.

Rational points on irrational varieties

ag.algebraic-geometry nt.number-theory
2019-06-24 through 2019-06-28
Institut Henri Poincare
Paris; France

Meeting Type: conference

Contact: see conference website

Description

none

Boston University-Keio University Workshop in Number Theory

nt.number-theory
2019-06-24 through 2019-06-29
Boston University
Boston, MA; USA

Meeting Type: conference

Contact: Jennifer Balakrishnan, Masato Kurihara, Steve Rosenberg

Description

none

July 2019

Journées Arithmétiques

ag.algebraic-geometry nt.number-theory
2019-07-01 through 2019-07-05
Istanbul; Turkey

Meeting Type: conference

Contact: see conference website

Description

The Journées Arithmétiques meetings, held every two years, cover all aspects of number theory. The venues alternate between locations in France and locations elsewhere in Europe.

Recent developments in Commutative Algebra

ac.commutative-algebra
2019-07-01 through 2019-07-05
Trento; Italy

Meeting Type: Summer school

Contact: Aldo Conca, Srikanth B. Iyengar, Anurag K. Singh,

Description

The Summer School will feature courses by Linquan Ma (Purdue University), Claudia Polini, (University of Notre Dame) Claudiu Raicu, (University of Notre Dame), Matteo Varbaro, (Università di Genova), Mark Walker, (University of Nebraska).

Further information will be posted on the conference website.

Summer School on Randomness and Learning in Non-Linear Algebra

ag.algebraic-geometry
2019-07-01 through 2019-07-05
Leipzig; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Perfectoids

ag.algebraic-geometry nt.number-theory
2019-07-08 through 2019-07-12
Henri Lebesgue Center for Mathematics
Rennes; France

Meeting Type: summer school, conference

Contact: see conference website

Description

An international summer school and conference on perfectoid spaces will take place July 8–12, 2019 in Rennes. The first part of the week, until the Thursday morning, will feature courses by international specialists on perfectoid rings, adic spaces and perfectoid spaces. From Thursday afternoon until the end of the conference invited speakers will present their latest results in the field. Participants and lecturers are generally expected to be present the entire week, but they also have the possibility to attend only the research conference on Thursday and Friday.

SIAM Conference on Applied Algebraic Geometry

ag.algebraic-geometry
2019-07-09 through 2019-07-13
University of Bern
Bern; Switzerland

Meeting Type: conference

Contact: see conference website

Description

none

Rational Points 2019

ag.algebraic-geometry nt.number-theory
2019-07-14 through 2019-07-20
Schloss Schney; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Women in Symplectic and Contact Geometry and Topology Workshop (WiSCon)

gt.geometric-topology sg.symplectic-geometry
2019-07-22 through 2019-07-26
ICERM, Brown University
Providence, Rhode Island; USA

Meeting Type: Workshop

Contact: see conference website

Description

Research Collaboration Conference for Women in Symplectic and Contact Geometry and Topology Workshop (WiSCon)

July 22 - 26, 2019

ICERM, Brown University

WiSCon is a Research Collaboration Conference for Women (RCCW) in the fields of contact and symplectic geometry/topology and related areas of low-dimensional topology. The goal of this workshop is to bring together women and nonbinary researchers at various career stages in these mathematical areas to collaborate in groups on projects designed and led by female leaders in the field.

Senior graduate students and early career researchers (including tenure-track) are strongly encouraged to apply!

Participants will work in teams on research projects, with researchers leading the projects including: • Penka Georgieva (Sorbonne) • Eli Grigsby (Boston College) • Tara Holm (Cornell) • Jen Hom (Georgia Tech) • Ailsa Keating (Cambridge) • Christine Ruey Shan Lee (University of South Alabama) • Chiu-Chu Melissa Liu (Columbia) • Allison Moore (UC Davis) • Emmy Murphy (Northwestern) • Yu Pan (MIT) • Ina Petkova (Dartmouth) • Ana Rita Pires (Edinburgh) • Olga Plamenevskaya (Stony Brook) • Radmila Sazdanović (North Carolina State) • Laura Starkston (UC Davis) • Lisa Traynor (Bryn Mawr) • Vera Vértesi (Strasbourg) • Katrin Wehrheim (UC Berkeley)

Applications are now open and will close on December 3, 2018.

This workshop is partially supported by NSF-HRD 1500481 - AWM ADVANCE grant.

Young Topologists Meeting 2019

kt.k-theory-and-homology gt.geometric-topology gn.general-topology ct.category-theory at.algebraic-topology
2019-07-22 through 2019-07-26
EPFL
Lausanne, Vaud; Switzerland

Meeting Type: conference

Contact: Stefania Ebli, Aras Ergus, Adélie Garin, Celia Hacker, Lyne Moser, Haoqing Wu

Description

Young Topologists Meeting 2019 will be held from Monday, July 22, to Friday, July 26, 2019 at EPFL in Lausanne, Switzerland.

The conference is intended as an opportunity for graduate students, recent PhDs, and other junior researchers in topology (both pure and applied) to meet each other and share their work. In addition to short talks by participants, the program for the meeting will include two lecture series by:

  • Julie Bergner (University of Virginia)
  • Vidit Nanda (University of Oxford)

Further information is going to be made available on the conference website at ytm2019.epfl.ch. The organizers can be contacted at ytm2019@epfl.ch.

The First Journal of Number Theory Biennial Conference

nt.number-theory
2019-07-26 through 2019-07-29
Journal of Number Theory and Scuola Normale Superiore
Cetraro; Italy

Meeting Type: conference

Contact: See conference website

Description

The Journal of Number Theory will host a number theory conference every two years to publicize recent advances in the field. The JNT is sponsoring the David Goss Prize of 10K USD to be awarded every two years at the JNT Biennial to a young researcher in number theory. Proceedings of the JNT Biennial conferences will appear in a special volume of the JNT.

Equivariant Topology and Derived Algebra, in honour of John Greenlees’s 60th birthday

ag.algebraic-geometry at.algebraic-topology ac.commutative-algebra
2019-07-29 through 2019-08-02
NTNU
Trondheim; Norway

Meeting Type: conference

Contact: Scott Balchin, David Barnes, Magdalena Kedziorek, Markus Szymik, Gareth Williams

Description

A Jolly Pleasant Conference for Greenlees (J.P.C. Greenlees) officially known as Equivariant Topology and Derived Algebra

A conference in honour of John’s 60th birthday

Geometric methods in p-adic representation theory

nt.number-theory rt.representation-theory
2019-07-29 through 2019-08-02
Mathematical Institute, University of Oxford
Dublin; Ireland

Meeting Type: conference

Contact: Konstantin Ardakov, Peter Schneider

Description

The goal of this workshop is to bring together researchers who work in number theory or representation theory or non-archimedean analysis, with an eye towards recent developments in the p-adic representation theory of p-adic groups.

Among others, the themes of the workshop include:

  • applications to the p-adic local Langlands program,
  • constructing representations through the cohomology of Drinfeld coverings,
  • p-adic analogues of Beilinson-Bernstein localisation,
  • techniques from differential-graded categories.

August 2019

Floer Homotopy Theory and Low-Dimensional Topology

at.algebraic-topology gt.geometric-topology sg.symplectic-geometry
2019-08-05 through 2019-08-07
University of Oregon
Eugene, OR; USA

Meeting Type: conference

Contact: Robert Lipshitz

Description

none

ICCOPT 2019 - 6th International Conference on Continuous Optimization

oc.optimization-and-control
2019-08-05 through 2019-08-08
Technical University of Berlin
Berlin; Germany

Meeting Type: conference

Contact: Michael Hintermüller

Description

ICCOPT is a flagship conference of the Mathematical Optimization Society (MOS), organized every three years. ICCOPT 2019 is hosted by the Weierstrass Institute for Applied Analysis and Stochastics (WIAS) Berlin. It will include a Summer School (August 3-4) and a Conference (August 5-8) with a series of plenary and semi-plenary talks, organized and contributed sessions, and poster sessions.

Arithmetic and Algebraic Geometry

ag.algebraic-geometry nt.number-theory
2019-08-05 through 2019-08-09
University of Michigan, Ann Arbor
Ann Arbor, Michigan; USA

Meeting Type: conference

Contact: Bhargav Bhatt, Evangelia Gazaki

Description

none

Number Theory in the Americas

nt.number-theory
2019-08-11 through 2019-08-16
Casa Matemática Oaxaca
Oaxaca; Mexico

Meeting Type: collaboration conference

Contact: see conference website

Description

In many Latin American countries, political instability, institutional weakness and a lack of government support for scientific research have hindered the development of mathematics. There have been signs of progress in recent years. In 2014, Brazilian mathematics received international recognition when Artur Avila became the first South American to be awarded a Fields Medal. In 2018, the International Congress of Mathematicians will be hosted in a Latin American country for the first time. Within the last five years, several major conferences, such as the Mathematical Congress of the Americas, the AGRA winter schools, and PRIMA 2017, have been organized with the specific aim of increasing mathematical activity in Latin American countries.

In spite of all of this progress, there is still room for improvement. Number theory research in South and Central America continues to be largely confined to geographically isolated pockets of activity, concentrated within a small number of subfields. Many of the strongest math students go abroad for their training, in some cases because they cannot find viable Ph.D. supervisors in the research areas that they hope to pursue in their home countries. In most areas, Latin American mathematicians continue to be poorly represented at major international conferences. The proposed workshop aims to address some of these issues. Our main objectives are as follows:

Facilitate collaboration between North, Central, and South American number theorists.

The primary aim of the proposed workshop is to promote collaboration between number theorists in North, Central, and South America. To do this, we will model our workshop after several other workshops that have been extremely successful at sparking new collaborations: the American Institute of Mathematics workshops, the AMS Mathematics Research Communities workshops, and the BIRS-sponsored Women In Numbers workshops. Participants will be divided into small project groups led by senior researchers. Most of the time during the workshop will be spent working on research in these project groups. The goal is for researchers to leave the workshop with the beginning of a research paper or, at least, with a list of good candidates for future collaborators and a deeper understanding of a timely subject.

Foster research in timely areas of number theory. All of our confirmed participants have impressive research track records, and several are leading mathematicians by world standards. All of our project groups are on areas central to current research in the field, and all of these areas can also be said to lie in the crossroads between number theory and other fields. In several cases, this requires little explanation: the study of the arithmetic of algebraic varieties lies in the intersection of number theory and algebraic geometry; the study of modular forms, which originated in complex analysis, has been essential to number theorists since Ramanujan. The Langlands program is inherently about building connections, particularly with representation theory.

Continuing with our list of topics: additive combinatorics is a relatively new name for an area that encompasses additive number theory, combinatorial arguments and probabilistic and ergodic ideas. The importance of analytical tools to number theory has been clear since Riemann, and the relevance of harmonic analysis and spectral theory has become clearer and clearer since the mid-20th century. Probabilistic arguments in number theory have been fruitful ever since Erd\H{o}s and Tur\'an. The relevance of ergodic theory and dynamical systems to number theory has been known at least since Furstenberg and Ratner. Geometry and number theory often give two different perspectives on arithmetic groups. In particular, spectral gaps and expanders are terrains where number theory, spectral theory and geometry meet.

Train young researchers. Rather than filling the workshop with invited participants, we will reserve some spaces for young researchers who can apply to work in project groups that match their interests. One of our aims is to provide specialized training for young researchers in Latin American countries and introduce them to interesting problems in areas that may not be well-represented in their home countries. In some cases, this will be their first experience with working on a collaborative project. We will take steps to create a supportive environment so that young researchers will feel encouraged by the experience. We will also hold several panel discussions on topics that will be of particular interest to young researchers (see the Overview for more details).

Provide mentoring opportunities for mathematicians who normally do not get to train young researchers. The project groups are designed to provide a vertical mentoring structure, enabling mathematicians at different stages of their careers to mentor one another. Some of our participants may be faculty members at institutions without Ph.D. programs, and some will come from countries where it is typical for the strongest students to go abroad for graduate school. Such participants will have an exceptional chance to mentor promising young researchers in their project groups.

Attract greater visibility for the work of Latin American number theorists. A growing number of Latin Americans are working in number theory. By assembling this group, we will demonstrate that there is, in fact, already a fair number of strong number theorists connected to Latin American countries. Holding our workshop at the CMO, and advertising it on the BIRS website, will lend them additional prominence.

Build a network of Spanish-speaking mathematicians. This workshop will provide the foundation for creating a global network of Spanish-speaking mathematicians. In particular, we plan to start an online community -- including a mailing-list and possibly a more visible database -- of self-identified Spanish-speaking number theorists from around the world, organized by research area, which we hope will be useful to future conference organizers. The defining criterion will be an ability and willingness to lecture and work in Spanish.

Representation Theory and Integrable Systems

rt.representation-theory qa.quantum-algebra mp.mathematical-physics
2019-08-12 through 2019-08-16
ETH
Zurich; Switzerland

Meeting Type: conference

Contact: Evgeny Mukhin, Pavel Etingof, Giovanni Felder

Description

A conference on the occasion of the 60th birthday of Vitaly Tarasov and the 70th birthday of Alexander Varchenko.

Graduate Summer School on the Geometry and Modular Representation Theory of Algebraic Groups

ag.algebraic-geometry rt.representation-theory
2019-08-19 through 2019-08-23
Simons Center for Geometry and Physics
Stony Brook, NY; USA

Meeting Type: Graduate Summer School

Contact: Mark Andrea de Cataldo, Francois Greer, Christian Schnell

Description

The goal of this summer school is to introduce Ph.D. students and Postdocs to exciting recent developments in the geometry of algebraic groups and in modular representation theory.

The school will consist of two morning lecture series and of afternoon lectures on topics directly related to the morning lecture series.

Michel Brion (Grenoble) will give one lecture series on the “Structure of algebraic groups and geometric applications”. Geordie Williamson (Sydney) will give the other lecture series “On the modular representation theory of algebraic groups.”

M. Brion’s abstract. The course will first give an overview of the “classical” structure theory of algebraic groups and of some related geometric developments and problems; for example, on automorphism groups of projective algebraic varieties. It will then address results and questions on algebraic groups over arbitrary fields, including the structure of pseudo-reductive groups (work of Conrad, Gabber and Prasad), and of pseudo-abelian varieties (Totaro). Five lectures, 75 minutes each.

G. Williamson’s abstract. This course will be about the modular (i.e. characteristic p) representation theory of reductive algebraic groups, like the general linear and symplectic groups. I will begin by reviewing the algebraic theory, where there are beautiful connections to classical Lie theory and finite group theory. I will then pass to the geometric theory (perverse and parity sheaves) which is behind recent breakthroughs in the subject. The theory is rich in mysteries and open conjectures, and I will try to outline potentially interesting research directions. Five lectures, 75 minutes each.

Women in Numbers Europe 3

ag.algebraic-geometry nt.number-theory
2019-08-26 through 2019-08-30
Henri Lebesgue Center for Mathematics
Rennes; France

Meeting Type: conference

Contact: see conference website

Description

This is a workshop that aims to support new collaborations between female mathematicians. Before the workshop, each participant will be assigned to a working group according to her research interests. Prior to the conference, the project leaders will design projects and provide background reading and references for their groups.

Confirmed group leaders:

Irene Bouw (Ulm)
Rachel Newton (Reading) and Ekin Ozman (Bogazici)
Damaris Schindler (Utrecht) and Lilian Matthiessen (KTH)
Ramla Abdellatif (Picardie Jules Verne)
Cecilia Salgado (Rio de Janeiro)
Elisa Gorla (EPFL)
Eimear Byrne (Dublin) and Relinde Jurrius (Neuchâtel)
Kristin Lauter (Microsoft)
Marcela Hanzer (Zagrev)
Lejla Smajlovic (Sarajevo)

Women in Topology III

at.algebraic-topology
2019-08-26 through 2019-08-30
Hausdorff Research Institute for Mathematics
Bonn; Germany

Meeting Type: workshop

Contact: Julie Bergner, Angélica Osorno, Sarah Whitehouse

Description

The purpose of the workshop is to support and expand research efforts by female mathematicians in the field of algebraic topology. The workshop will bring senior and junior researchers together with advanced graduate students to cooperate on research projects on topics of common interest. The focus of the workshop will be on active collaboration to advance the projects, rather than on knowledge communication through lectures.

September 2019

p-adic Langlands correspondence: a constructive and algorithmic approach

ag.algebraic-geometry nt.number-theory rt.representation-theory
2019-09-02 through 2019-09-06
Henri Lebesgue Center for Mathematics
Rennes; France

Meeting Type: conference

Contact: see conference website

Description

The aim of arithmetic geometry is to solve equations on integers by geometric methods. One of the most prominent achievements of this approach is certainly the Langlands program, which makes a connection between representations of the absolute Galois group of $\mathbb Q$ and certain adelic representations of reductive algebraic groups. In the early 2000's, Christophe Breuil suggested the existence of a purely $p$-adic version of the Langlands correspondence and supported his vision by numerous examples. Almost twenty years after, the $p$-adic Langlands correspondence has become a major topic in number theory.

Besides, following the rapid development of computer science throughout the 20th century, a large panel of algorithmical tools has been deployed and are now quite performant, in particular for attacking questions in Number Theory. A computational approach to the (classical) Langlands correspondence has been already investigated in recent times as well. We believe that the time has come to begin to extend it to the $p$-adic Langlands correspondence.

This conference is a first step towards this perspective. It will bring together the most internationally recognized experts in $p$-adic Langlands correspondence on the one hand and effective aspects of the Langlands correspondence on the other hand. Young researchers, and more generally researchers who are familiar with one side (either the abstract one or the effective one) and are willing to learn the other side, are particularly encouraged to attend our event: a enthousiastic program with 2 mini-courses, a bunch of short lectures and an introduction to the mathematical software SageMath is specially designed for them.

Perfectoid spaces

ag.algebraic-geometry nt.number-theory
2019-09-09 through 2019-09-20
International Centre for Theoretical Sciences
Bengaluru; India

Meeting Type: summer school

Contact: see conference website

Description

In this school, we intend to understand connections between the arithmetic theory of modular forms and new developments in p-adic Hodge theory that grew from the breakthrough work of Peter Scholze on perfectoid spaces (see P. Scholze "Perfectoid spaces" Publ. Math. de l’IHES 116 (2012)).

p-adic methods play a key role in the study of arithmetic properties of modular forms. This theme takes its origins in Ramanujan congruences between the Fourier coeffcients of the unique eigenform of weight 12 and the Eisenstein series of the same weight modulo the numerator of the Bernoulli number B12. After the work of Deligne on Ramanujan's conjecture it became clear that congruences between modular forms reflect deep properties of corresponding p-adic representations. The general framework for the study of congruences between modular forms is provided by the theory of p-adic modular forms developed in fundamental papers of Serre, Katz, Hida and Coleman (1970's-1990's).

p-adic Hodge theory was developed in pioneering papers of Fontaine in 80’s as a theory classifying p-adic representations arising from algebraic varieties over local fields. It culminated with the proofs of Fontaine's de Rham, crystalline and semistable conjectures (Faltings, Fontaine-Messing, Kato, Tsuji, Niziol,...). In order to classify all p-adic representations of Galois groups of local fields, Fontaine (1990) initiated the theory of (φ, Г)-modules. This gave an alternative approach to classical constructions of the p-adic Hodge theory (Cherbonnier, Colmez, Berger). The theory of (φ, Г)-modules plays a fundamental role in Colmez's construction of the p-adic local Langlands correspondence for GL2. On the other hand, in their famous paper on L-functions and Tamagawa numbers, Bloch and Kato (1990) discovered a conjectural relation between p-adic Hodge theory and special values of L-functions. Later Kato discovered that p-adic Hodge theory is a bridge relating Beilinson-Kato Euler systems to special values of L-functions of modular forms and u sed it in his work on Iwasawa-Greenberg Main Conjecture. One expects that Kato’s result is a particular case of a very general phenomenon.

The mentioned above work of Scholze represents the main conceptual progress in p-adic Hodge theory after Fontaine and Faltings. Roughly speaking it can be seen as a wide generalization, in the geometrical context, of the relationship between p-adic representations in characteristic 0 and characteristic p provided by the theory of (φ,Г)-modules. As an application of his theory, Scholze proved the monodromy weight conjecture for toric varieties in the mixed characteristic case. On the other hand, in a series of papers, Scholze applied his theory to the study of the cohomology of Shimura varieties. In particular to the construction of mod p Galois representations predicted by the conjectures of Ash (see P. Scholze “On torsion in the cohomology of locally symmetric space" (Ann. Of Math. 182 (2015)). Another striking application of this theory is the geometrization of the local Langlands correspondence in the mixed characteristic case. Here the theory of Fontaine—Fargues plays a fundamental role.

This goal of the proposed summer school is twofold:

  1. Give an advanced introduction to Scholze's theory.
  2. To understand the relation between perfectoid spaces and some aspects of arithmetic of modular (or, more generally, automorphic) forms such as representations mod p, and lifting of modular forms, completed cohomology, local Langlands program and special values of L-functions.

We wish to bring together experts in the area of arithmetic geometry that will felicitate future research in the direction. We strongly encourage participation of young researchers.

New Developments in Representation Theory of p-adic Groups

nt.number-theory rt.representation-theory
2019-09-29 through 2019-10-05
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none

October 2019

Modularity and Moduli Spaces

ag.algebraic-geometry nt.number-theory
2019-10-20 through 2019-10-25
Casa Matemática Oaxaca
Oaxaca; Mexico

Meeting Type: conference

Contact: see conference website

Description

Modularity. Until relatively recently, the celebrated Taylor--Wiles method for establishing the automorphy of Galois representations carried several significant limitations. First, the method applied only to Galois representations expected to come from cohomological automorphic forms of regular weight. For classical modular forms this excludes the case of weight 1 forms. Second, the locally symmetric space in whose cohomology the automorphic form is expected to arise was required to be an algebraic variety (a Shimura variety). This excludes for instance the case of elliptic curves over imaginary quadratic fields, where the locally symmetric space is 3-dimensional, and so cannot even admit a complex structure. Finally, in the absence of results towards Serre's conjecture on the modularity of mod p Galois representations, the Taylor--Wiles method generally only establishes the potential automorphy of Galois representations, i.e., automorphy after a finite base change.

In a major breakthrough, Calegari--Geraghty have introduced a derived version of the Taylor--Wiles method which has the potential to remove the first two of these restrictions. To realize the potential of the Calegari--Geraghty method requires overcoming a number of significant challenges in the theory of automorphic forms and the arithmetic of Shimura varieties. For instance one needs to know the existence of Galois representations attached to torsion classes in the cohomology of locally symmetric spaces, as well as strong forms of local-global compatibility for those representations. Scholze [SchTorsion] (and independently Boxer [Boxer] in some special cases) has addressed the former, and work of Cariani--Scholze [CS] on the vanishing of torsion in the cohomology of non-compact Shimura varieties has made progress towards the latter. These advances already have remarkable applications, such as the proof of potential modularity of elliptic curves over imaginary quadratic fields, as well as the Sato--Tate conjecture for such curves [tenauthor].

In addition to examining these many important developments, the workshop will contemplate possible future improvements to the Calegari--Geraghty method, such as may come from incorporating the derived deformation theory of Galatius--Venkatesh [GV]. We will also explore the prospects for proving actual (rather than potential) modularity of elliptic curves over some CM fields. Another expected topic is work in progress by Boxer--Calegari--Gee--Pilloni on the potential automorphy of abelian surfaces, using the Calegari--Geraghty method, as well as Pilloni's ``higher Hida theory'' for coherent cohomology of Shimura varieties [Pilloni].

Moduli of Galois representations. In ongoing work, Emerton and Gee are constructing moduli stacks which parameterize p-adic Galois representations arising from p-adic local fields. In the classical deformation theory of Galois representations, one considers formal families of deformations of a fixed mod p Galois representation; in contrast, the Emerton--Gee stacks admit non-constant families of mod p Galois representations, raising the possibility of arguing by interpolating between them. Furthermore, thanks to the global geometry of these spaces one has more algebro-geometric tools at one's disposal to study them.

The Emerton--Gee moduli stacks are built out of moduli spaces of integral p-adic Hodge theory data. Several incarnations of p-adic Hodge theory play a role in constructing and understanding these spaces, including Breuil-Kisin modules, Wach modules, and Tong Liu's (ϕ,Gˆ)-modules. Understanding how these different theories interact should a play an important role in the further development of this field. There remains many open questions about these stacks. What are the components of the special fiber? Are they normal? Cohen--Macaulay? What kind of singularities do they have? What is the structure of the line bundles/coherent sheaves on these spaces? Answers to these questions would have broad implications for modularity and the p-adic Langlands program.

The geometry of the Emerton--Gee stacks is closely linked to the Breuil--M\'ezard conjecture, which first arose in the context of attempt to generalize the Taylor--Wiles method. This conjecture measures the complexity of local Galois deformation rings (i.e., the versal deformation rings at closed points of Emerton--Gee stacks) in terms of the modular representation theory of GLn;\ understanding the geometry of local deformation spaces is essential for proving modularity lifting theorems. The Breuil--M\'ezard conjecture is in turn closely connected to the so-called weight part of Serre's conjecture, which can be viewed as a step towards the conjectural p-adic local Langlands correspondence.

For example, Caraiani--Emerton--Gee--Savitt [CEGS] are able to use known results about the geometric Breuil--M\'ezard conjecture and the weight part of Serre's conjecture for GL2 to analyze the irreducible components of certain Emerton--Gee stacks and relate them to the modular representation theory of GL2. The moduli stack perspective has also already played a role in the proof of the weight part of Serre's conjecture in generic situations in higher dimensions [LLLM1, LLLM2] and in on-going work of Emerton--Gee on the existence of crystalline lifts of mod p representations.

Despite considerable progress (e.g.\ [Herzig, GHS]), there still is no unconditional statement of the weight part of Serre's conjecture beyond the case of GL2. The Emerton-Gee moduli stack may be helpful for understanding this conjecture, as illustrated by the work of [CEGS]. One objective of the workshop will be to formulate an unconditional weight part of Serre's conjecture in terms of the Emerton-Gee stack, and to understand how such a conjecture relates to modular representation theory and to the Breuil-M\'ezard conjecture.

Finally, there are already tantalizing hints, for instance the work of [EGS] proving Breuil's local-global compatibility conjecture for types in the p-adic Langlands program, that the Emerton--Gee moduli stacks will play an important role in future developments on the modularity of Galois representations. However, this avenue is as yet largely unexplored. Another goal of this workshop is to bring together leading experts involved in these two strands of research in order to explore the possible synergies between them.

Local models for Galois deformation spaces. Although the two flavors of moduli spaces (Shimura varieties, Galois deformation spaces) that we have contemplated in this proposal are rather different, Kisin [Kis09a] observed that there is a surprising and fundamental relation between them:\ namely, their singularities are both modeled by relatively simpler moduli spaces called local models of Shimura varieties. These local models have been studied extensively in the context arithmetic of Shimura varieties, so that much is known about their geometry. Kisin's observation led to improved modularity lifting theorems, which in turn played a key role in the eventual proof of Serre's original conjecture for GL2/Q.

Beyond dimension two, in order to study regular weight Galois deformation spaces, there is an additional condition which comes from a subtle analogue of Griffiths transverality in p-adic Hodge theory. In [LLLM1,LLLM2], Le--Le Hung--Levin--Morra give explicit presentations for certain potentially crystalline deformation rings with Hodge--Tate weights (0,1,2) by studying this Griffiths transversality condition, and as an application prove cases of the weight part of Serre's conjecture and other related conjectures in dimension three. In higher dimension, the connection with local models is weaker and does not capture the Griffiths transversality condition. Ongoing work of Le--Le Hung--Levin--Morra constructs local models for Galois deformation spaces in generic situations and will shed light on the structure of generic parts of the Emerton-Gee moduli stack. Further, there are mysterious connections between these local models and objects in geometric representation theory which have not yet been explored.

There are a number of parallels between the mod p and p-adic stories. A striking example of this is Breuil--Hellmann--Schraen's recent proof of a Breuil--M\'ezard type conjecture for locally analytic representations, which furthermore leads to a proof of the locally analytic socle conjecture of Breuil [BHS]. They study the geometry of a p-adic family of Galois representations called the trianguline variety. In another parallel to the mod p picture, they create a link between the geometry of these p-adic families to objects in geometric representation theory.

By sharing these new developments broadly with other experts in the field, the workshop aims to spur further development of connections between moduli of Galois representations and the geometry of (generalized) local models, and of parallels between the p-adic and mod p settings; and to contemplate what the implications might be for the geometry of Emerton--Gee stacks.

November 2019

Analytic Number Theory

nt.number-theory
2019-11-03 through 2019-11-09
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none

January 2020

K-Theory, Algebraic Cycles and Motivic Homotopy Theory

ag.algebraic-geometry mp.mathematical-physics nt.number-theory
2020-01-06 through 2020-06-30
Isaac Newton Institute
Cambridge; UK

Meeting Type: thematic research program

Contact: see conference website

Description

The programme will focus on the areas of Algebraic K-theory, Algebraic Cycles and Motivic Homotopy Theory. These are fields at the heart of studying algebraic varieties from a cohomological point of view, which have applications to several other fields like Arithmetic Geometry, Hodge theory and Mathematical Physics.

It was in the 1960s that Grothendieck first observed that the various cohomology theories for algebraic varieties shared common properties, which led him to explain the underlying kinship of such cohomology theories in terms of a universal motivic cohomology theory of algebraic varieties. The theory of Algebraic Cycles, Higher Algebraic K-theory, and Motivic Homotopy Theory are modern versions of Grothendieck's legacy. In recent years it has seen some spectacular developments, on which we want to build further.

The programme will also specifically explore the connections between the following areas:

Algebraic K-theory, Motivic Cohomology, and Motivic Homotopy Theory;
Hodge theory, Periods, Regulators, and Arithmetic Geometry;
Mathematical Physics.

For this, we shall bring together mathematicians working on different aspects of this broad area for extended periods of time, promoting exchange of ideas and stimulating further progress.

During the programme there will be four workshops. At the very beginning, there will be a workshop aimed at giving a younger generation of mathematicians an overview of and introduction to this interesting, but broad area. Later there will be a workshop for each of the three areas listed above, aimed at the latest developments and applications of that area.

March 2020

Arithmetic geometry, cycles, Hodge theory, regulators, periods and heights

ag.algebraic-geometry nt.number-theory
2020-03-30 through 2020-04-03
Isaac Newton Institute
Cambridge; UK

Meeting Type: conference

Contact: see conference website

Description

none

May 2020

The Arithmetic of the Langlands Program

ag.algebraic-geometry nt.number-theory rt.representation-theory
2020-05-04 through 2020-08-21
Hausdorff Research Institute for Mathematics
Bonn; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Summer School: The Arithmetic of the Langlands Program

ag.algebraic-geometry nt.number-theory rt.representation-theory
2020-05-11 through 2020-05-15
Hausdorff Research Institute for mathematics
Bonn; Germany

Meeting Type: summer school

Contact: see conference website

Description

none

June 2020

Arithmetic Geometry, Number Theory, and Computation III

ag.algebraic-geometry nt.number-theory
2020-06-01 through 2020-06-05
ICERM
Providence, RI; USA

Meeting Type: conference

Contact: Andrew V. Sutherland

Description

none

Foundations of Computational Mathematics (FoCM) 2020

ag.algebraic-geometry nt.number-theory
2020-06-15 through 2020-06-24
Simon Fraser University
Vancouver, BC; Canada

Meeting Type: conference

Contact: see conference website

Description

none

July 2020

Park City Mathematics Institute: Number theory informed by computation

nt.number-theory
2020-07-05 through 2020-07-25
IAS/PCMI
Park City, UT; USA

Meeting Type: conference and summer school

Contact: Bjorn Poonen

Description

none

Workshop on Local Langlands and p-adic methods

ag.algebraic-geometry nt.number-theory rt.representation-theory
2020-07-13 through 2020-07-17
Hausdorff Research Institute for Mathematics
Bonn; Germany

Meeting Type: conference

Contact: see conference website

Description

none

August 2020

Workshop on Global Langlands, Shimura varieties, and shtukas

ag.algebraic-geometry nt.number-theory rt.representation-theory
2020-08-17 through 2020-08-21
Hausdorff Research Institute for Mathematics
Bonn; Germany

Meeting Type: conference

Contact: see conference website

Description

none

Decidability, definability and computability in number theory

ag.algebraic-geometry lo.logic nt.number-theory
2020-08-17 through 2020-12-18
MSRI
Berkeley, CA; USA

Meeting Type: research program

Contact: see conference website

Description

This program is focused on the two-way interaction of logical ideas and techniques, such as definability from model theory and decidability from computability theory, with fundamental problems in number theory. These include analogues of Hilbert's tenth problem, isolating properties of fields of algebraic numbers which relate to undecidability, decision problems around linear recurrence and algebraic differential equations, the relation of transcendence results and conjectures to decidability and decision problems, and some problems in anabelian geometry and field arithmetic. We are interested in this specific interface across a range of problems and so intend to build a semester which is both more topically focused and more mathematically broad than a typical MSRI program.