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Upcoming Meetings

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January 2019

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.

April 2019

Talbot Workshop 2019

at.algebraic-topology gt.geometric-topology
2019-04-07 through 2019-04-13
MIT
McCullough County, TX; USA

Meeting Type: workshop

Contact: see conference website

Description

2019 TALBOT WORKSHOP: MODULI SPACES OF MANIFOLDS

Mentored by Soren Galatius and Oscar Randal-Williams

April 7-13, 2019

McCullough County, TX

The Talbot Workshop is a one week learning workshop for roughly 35 graduate students and a few postdocs. Most of the talks will be given by participants, and will be expository in nature. This year's workshop will survey the classical approach to analyzing moduli spaces of manifolds (via surgery theory and pseudoisotopy theory), but will focus on the more recent approach via cobordism categories, fiberwise surgery, and homological stability. It will also touch on a method recently introduced by Weiss exploiting embedding calculus. More details about the program, including a preliminary list of talks and references, can be found here:

http://math.mit.edu/conferences/talbot/

Applications close on Friday, February 1 at 11:59PM. You can apply online here:

http://math.mit.edu/conferences/talbot/index.php?pageID=application

Talbot is meant to encourage collaboration among young researchers, with an emphasis on graduate students. We also aim to gather participants with a diverse array of knowledge and interests, so applicants need not be an expert in the field--in particular, students at all levels of graduate education are encouraged to apply. As we are committed to promoting diversity in mathematics, we also especially encourage women and minorities to apply.

We will cover all local expenses including lodging and food. We also offer partial funding for participants' travel costs.

If you have any questions, please do not hesitate to e-mail the organizers at talbotworkshop (at) gmail.com.

Organizers: Calista Bernard, Yajit Jain, Morgan Opie, Sean Pohorence

2019 Arches Topology Conference

at.algebraic-topology gt.geometric-topology
2019-04-24 through 2019-04-27
West Chester University & Brigham Young University
Hurricane, UT; USA

Meeting Type: conference

Contact: Jeremy Brazas

Description

This conference will focus on interactions between the algebraic topology and geometric group theory. NSF funding is expected to be available for lodging and travel travel expenses for graduate students and speakers without their own source of funding.

The 2019 meeting will be in Hurricane, UT, nestled closely between Zion National Park and Red Cliffs National Conservation Area. Regular talks will take place from 9 AM - 12 noon and the time from 12 noon to 8 pm will be free collaboration/discussion time in which you are welcome to explore the beautiful Zion National Park (also home to natural arches) and the surrounding area. The first three days will conclude with the evening plenary talks from 8-9 pm.

May 2019

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

Homotopy meets homology

at.algebraic-topology ct.category-theory kt.k-theory-and-homology
2019-05-27 through 2019-05-31
Hamilton Mathematics Institute, Trinity College Dublin
Dublin; Ireland

Meeting Type: workshop

Contact: Vladimir Dotsenko

Description

Computing various homological invariants of associative algebras (such as Tor and Ext of various modules, Hochschild (co)homology, cyclic homology etc.) has been an active research topic in ring theory for many years. More recently (about 15 years ago), ring theorists became interested in associative algebras up to homotopy, or A-infinity algebras, as a recipe to produce meaningful "higher structures" on classical objects like Yoneda Ext-algebras.

This offers two different perspectives on associative algebras: homological invariants are "Abelian" (i. e. arise when one works with additive categories, e.g. chain complexes of modules over a ring), while homotopical invariants are "non-Abelian" (i. e. arise from non-additive categories, like the category of all differential graded associative algebras). However, these two perspectives are closely related, and it is often possible to recover homological information from the homotopical one, and the other way round. For experts in homotopical algebra on a larger scale (beyond the associative ring theory), this philosophy is already present in works of Stasheff and Hinich on homotopy algebras.

The goal of this workshop is to provide a forum for experts in related areas to share ideas with each other and with younger researchers, identify new promising connections and explore arising research directions.

June 2019

Motives Today

ag.algebraic-geometry at.algebraic-topology
2019-06-03 through 2019-06-07
CIRM-FBK
Trento; Italy

Meeting Type: summer school

Contact: see conference website

Description

none

Nielsen Theory and Related Topics

at.algebraic-topology gr.group-theory gt.geometric-topology
2019-06-03 through 2019-06-07
Catholic Univerisity of Louvain (KU Leuven Campus Kortrijk)
Kortrijk; Belgium

Meeting Type: conference

Contact: Karel Dekimpe

Description

We are pleased to announce the next edition of the conference on

Nielsen Theory and Related Topics

which will be held at Kortrijk (Belgium) from June 3 to June 7, 2019.

On the first day of the conference there will be special lectures, aimed at non-specialists, by

Iván Sadofschi Costa (Universidad de Buenos Aires, Argentina) Tatiana Fomenko (Moscow State University, Russia) John Guaschi (Université de Caen Normandie, France) Kate Ponto (University of Kentucky, United States of America)

Other participants will have the opportunity to submit a proposal for a short talk to the scientific committee. The organizers especially want to encourage young researchers to present their work during this meeting.

This and other information is now available at the conference's homepage http://www.kuleuven-kulak.be/nielsen

Summer school: Geometric representation theory and low-dimensional topology

at.algebraic-topology ag.algebraic-geometry mp.mathematical-physics qa.quantum-algebra rt.representation-theory
2019-06-03 through 2019-06-07
International Centre for Mathematical Sciences
Edinburgh; UK

Meeting Type: summer school

Contact: Dan Freed, David Jordan, Peter Samuelson, Olivier Schiffmann

Description

In recent years, several independent research groups have raised the possibility of a unified approach to the study of Khovanov-Rozansky knot homology, double affine Hecke algebras and elliptic Hall algebras, super Yang-Mills theory, Betti quantum geometric Langlands, and Hilbert schemes, seen through the lens of character varieties and related geometries. The aim of this workshop is to bring together researchers in topological field theory, geometric representation theory, mathematical physics, and algebraic combinatorics to report on recent progress and open questions at the intersection of these fields.

The conference will be preceded by a week-long summer school aimed at graduate and post-doctoral researchers, with the goal to initiate them to the ideas needed to follow the talks the following week. There will be an application process for this, and funding is available to cover the lodging for summer school participants for the duration of both events. We have addtional supplementary NSF funding for the travel costs of US-based summer school participants.

Summer school speakers:

Tina Kanstrup, Univeristy of Bonn

Pavel Safronov, University of Zurich

Hiro Lee Tanaka, Texas State University

Monica Vazirani, UC Davis

Conference speakers:

Mina Aganagic, UC Berkeley (*)

Adrien Brochier, University of Paris 7, Diderot

Ivan Cherednik, University of North Carolina

Tudor Dimofte, UC Davis

Pavel Etingof, MIT

John Francis, Northwestern University

Tamas Hausel, IST Vienna

Lotte Hollands, Heriot-Watt University

Anton Kapustin, Caltech

Anton Mellit, University of Vienna

Andrei Negut, MIT

Alexei Oblomkov, UMass Amherst

Tony Pantev, U Penn

Du Pei, Caltech

Pavel Safronov, University of Zurich

L. Schaposnik, University of Illinois, Chicago

Claudia Scheimbauer, NTNU Trondheim

Noah Snyder, Univeristy of Indiana, Bloomington

Constantin Teleman, UC Berkeley

Harold Williams, UC Davis

Dimitri Wyss, IST Vienna

(*) To be confirmed.

INTERACTIONS BETWEEN REPRESENTATION THEORY, ALGEBRAIC TOPOLOGY AND COMMUTATIVE ALGEBRA (IRTATCA)

at.algebraic-topology rt.representation-theory
2019-06-03 through 2019-06-15
Centre de Recerca Matemàtica
Barcelona; Spain

Meeting Type: Research programme

Contact: Varela,Pau

Description

Presentation The CRM and IMUB are pleased to announce the follow-up programme for the IRTATCA: Interactions between Representation Theory, Algebraic Topology and Commutative Algebra intensive research programme that was held in 2015 at the CRM. The program and its follow-up are devoted to promote interactions between researchers from different areas that share a common interest in homological techniques in a broad sense. The original programme gathered around 200 researchers from all over the world, and it is now time to have a look at some of the progress that took place since then.

These two weeks will be structured around one Advanced Course between the 3rd and 7th of June 2019, that will take place at the IMUB and a Conference between the 11th and the 15th of June 2019 that will take place at the CRM.​

Topics The programm is open to all researchers interested in homological algebra and its applications in areas like commutative algebra, representation theory and algebraic topology. This includes but is not restricted to: the study of triangulated categories, derived algebraic geometry, homotopy theory, singularity theory, representation theory, etc.

Topology Mini-Conference

at.algebraic-topology gt.geometric-topology
2019-06-06 through 2019-06-06
University of Regina
Regina, Saskatchewan; Canada

Meeting Type: conference

Contact: Martin Frankland, Paul Arnaud Songhafouo Tsopméné, Don Stanley

Description

Preceding the CMS Summer Meeting in Regina, there will be a short conference on topology, featuring research in algebraic topology, geometric topology, and homotopy theory.

Early Career Topology Researchers

at.algebraic-topology gn.general-topology gt.geometric-topology
2019-06-06 through 2019-06-07
University of Sheffield
Sheffield; UK

Meeting Type: conference

Contact: Jordan Williamson, Dan Graves

Description

A two-day conference primarily aimed at postgraduate students and post-docs working in all areas of topology with a focus on homotopy theory and applied topology.

Invited speakers:

Constanze Roitzheim (Kent)

Ran Levi (Aberdeen)

Conference - Geometric representation theory and low-dimensional topology

ag.algebraic-geometry at.algebraic-topology mp.mathematical-physics qa.quantum-algebra rt.representation-theory
2019-06-10 through 2019-06-14
International Centre for Mathematical Sciences
Edinburgh; UK

Meeting Type: conference

Contact: Dan Freed, David Jordan, Peter Samuelson, Olivier Schiffmann

Description

In recent years, several independent research groups have raised the possibility of a unified approach to the study of Khovanov-Rozansky knot homology, double affine Hecke algebras and elliptic Hall algebras, super Yang-Mills theory, Betti quantum geometric Langlands, and Hilbert schemes, seen through the lens of character varieties and related geometries. The aim of this workshop is to bring together researchers in topological field theory, geometric representation theory, mathematical physics, and algebraic combinatorics to report on recent progress and open questions at the intersection of these fields.

The conference will be preceded by a week-long summer school aimed at graduate and post-doctoral researchers, with the goal to initiate them to the ideas needed to follow the talks the following week. There will be an application process for this, and funding is available to cover the lodging for summer school participants for the duration of both events. We have addtional supplementary NSF funding for the travel costs of US-based summer school participants.

Summer school speakers:

Tina Kanstrup, Univeristy of Bonn

Pavel Safronov, University of Zurich

Hiro Lee Tanaka, Texas State University

Monica Vazirani, UC Davis

Conference speakers:

Mina Aganagic, UC Berkeley (*)

Adrien Brochier, University of Paris 7, Diderot

Ivan Cherednik, University of North Carolina

Tudor Dimofte, UC Davis

Pavel Etingof, MIT

John Francis, Northwestern University

Tamas Hausel, IST Vienna

Lotte Hollands, Heriot-Watt University

Anton Kapustin, Caltech

Anton Mellit, University of Vienna

Andrei Negut, MIT

Alexei Oblomkov, UMass Amherst

Tony Pantev, U Penn

Du Pei, Caltech

Pavel Safronov, University of Zurich

L. Schaposnik, University of Illinois, Chicago

Claudia Scheimbauer, NTNU Trondheim

Noah Snyder, Univeristy of Indiana, Bloomington

Constantin Teleman, UC Berkeley

Harold Williams, UC Davis

Dimitri Wyss, IST Vienna

(*) To be confirmed.

A website with up to date information is available at:

Conference: http://www.icms.org.uk/geometricrepresentation.php Summer school: http://www.icms.org.uk/GRTsummerschool.php

Applications for the summer school can be made from now until February 28th, 2019. Registration for the conference will begin January 15th, and run until February 28th; we'll send a reminder announcement at that time. Please feel free to email the organizers, at djordan@ed.ac.uk, in the meantime with any questions, or to let us know your intent to register.

For both events, the organizers are committed to a fair gender balance and to hosting a diverse body of participants. Members of under-represented groups are especially encouraged to apply to participate.

We hope to see you there, Dan Freed David Jordan Peter Samuelson Olivier Schiffmann

LG&TBQ: a conference in geometry, topology, and dynamics on the work of LGBTQ+ mathematicians.

at.algebraic-topology dg.differential-geometry ds.dynamical-systems gr.group-theory gt.geometric-topology
2019-06-10 through 2019-06-14
University of Michigan
Ann Arbor, Michigan; USA

Meeting Type: conference

Contact: Autumn Kent, Harrison Bray

Description

LG&TBQ is a conference aiming to to foster ongoing community and collaboration among LGBTQ+ mathematicians working in geometry, topology and dynamical systems. All are welcome.

PIMS Workshop on Arithmetic Topology

at.algebraic-topology nt.number-theory
2019-06-10 through 2019-06-14
University of British Columbia
Vancouver, BC; Canada

Meeting Type: conference

Contact: see conference website

Description

The last 10 years have brought a burst of activity at the intersection of algebraic topology, number theory and algebraic geometry. This has led to a wealth of: New theorems, such as Ellenberg–Venkatesh–Westerland’s breakthrough results on the Cohen–Lenstra heuristics for function fields; New sources of heuristics in topology, such as Vakil–Wood’s predictions from the Grothendieck ring, or the notion and coincidences of homological densities as in Farb– Wolfson–Wood; Refinements of classical enumerative theorems using modern topological tools, such as Kass–Wickelgren’s arithmetic count of the 27 lines on a cubic surface; and A renewed focus on unstable homology, as in Galatius–Kupers–Randal-Williams and Miller–Wilson. We believe that these results are just the beginning of the emerging area of arithmetic topology.

This 5 day workshop will bring together junior and senior researchers from across these areas with the goal of:

Giving participants a global view of a fast emerging and multidisciplinary area,
Giving participants a detailed awareness on the range of methods available, and
Emerging with a robust problem list which can help guide activity in the area for the next 5-10 years.

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

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.

July 2019

European Talbot Workshop 2019: Algebraic K-theory

ag.algebraic-geometry at.algebraic-topology ct.category-theory kt.k-theory-and-homology
2019-07-07 through 2019-07-13
Rheinböllen; Germany

Meeting Type: Workshop

Contact: Bertram Arnold, Luci Bonatto, Jack Davies, Alice Hedenlund

Description

The fifth European Talbot workshop will take place in Germany July 7 - 13, 2019. The goal is to bring together a group of 30-35 graduate students and post-docs to work on a focused topic, this year algebraic K-theory, under the guidance of two senior mentors.

Most of the talks were given by the participants, with enough free time in the afternoon and evenings for further discussions and interaction. The character of the workshop is expository in nature, starting with the basic ideas and leading to a survey of the most recent developments in the field. Since all participants are staying together at a group house, jointly responsible for cooking and cleaning, we hope to create an informal and inspiring atmosphere.

Four-manifolds: Confluence of high and low dimensions

at.algebraic-topology gt.geometric-topology
2019-07-08 through 2019-07-12
Toronto; Canada

Meeting Type: conference

Contact: see conference website

Description

This workshop will bring together researchers from the worlds of low- and high-dimensional manifold topology, especially those with interests in the study of 4-manifolds.

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.

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

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

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

Computations in motivic homotopy theory

ag.algebraic-geometry at.algebraic-topology ct.category-theory kt.k-theory-and-homology
2019-09-16 through 2019-09-20
SFB Higher Invariants, University of Regensburg
Regensburg; Germany

Meeting Type: autumn school

Contact: Denis-Charles Cisinski, Markus Land, Florian Strunk, Georg Tamme

Description

An autumn school on computations in motivic homotopy theory with lecture series by Marc Hoyois, Oliver Röndigs, Kirsten Wickelgren, and Paul Arne Østvær. Please register at the school's website. Limited financial support is available.

Workshop on 4-manifolds

gt.geometric-topology
2019-09-16 through 2019-09-20
Max Plank Institute for Mathematics
Bonn; Germany

Meeting Type: conference

Contact: see conference website

Description

none

October 2019

Oberwolfach Seminar: Topological Cyclic Homology and Arithmetic

at.algebraic-topology kt.k-theory-and-homology nt.number-theory
2019-10-20 through 2019-10-26
Mathematisches Forschungsinstitut Oberwolfach
Oberwolfach; Germany

Meeting Type: week-long meeting with talks by organizers and participants

Contact: Dustin Clausen, Lars Hesselholt, Akhil Mathew

Description

We organize an Oberwolfach Seminar on Topological Cyclic Homology and Arithmetic. The purpose of the seminar is to introduce the higher algebra refinements of determinant and trace, namely, algebraic K-theory and topological cyclic homology, along with their budding applications in arithmetic geometry and number theory. In particular, we will use these ingredients to build Clausen's Artin map from K-theory of locally compact topological R-modules to the dual of his Selmer K-theory of R, and explain that for R a finite, local, or global field, this implies Artin reciprocity. If you wish to participate, please follow the instructions described here to register at ag@mfo.de by August 11, 2019.

March 2020

Equivariant Stable Homotopy Theory and p-adic Hodge Theory

ag.algebraic-geometry at.algebraic-topology nt.number-theory
2020-03-01 through 2020-03-06
Banff, AB; Canada

Meeting Type: conference

Contact: see conference website

Description

The Banff International Research Station will host the "Equivariant Stable Homotopy Theory and p-adic Hodge Theory" workshop in Banff from March 1 to March 06, 2020.

Algebraic topology has had a long and fruitful collaboration with algebraic geometry, with each providing techniques and problems to the other. This workshop is aimed at an exciting, evolving incarnation of this story: applications of equivariant stable homotopy to number theory. Recent work on the foundations of equivariant stable homotopy theory (starting with the Hill--Hopkins--Ravenel work on the Kervaire invariant one problem) and Lurie's development of the foundations of ''derived algebraic geometry'' now allows systematic exploration and organization of ''equivariant derived algebraic geometry''. This allows us to do ordinary algebraic geometry in commutative ring spectra.

New foundations in this area have been spectacularly applied to phenomena seen in the trace methods approach to computing algebraic K -theory. For instance, although the theory of equivariant commutative ring spectra was described decades ago, few of the subtleties in the theory were understood or explored. The modern approaches to computing algebraic K-groups step through equivariant commutative ring spectra via the natural S1-action on topological Hochschild homology. Ongoing and transformative work by Bhatt--Morrow-Scholze in p-adic Hodge theory uses cyclotomic spectra and therefore subtle equivariant information. This workshop, at the vanguard of work in this area, seeks to bring together experts in algebraic topology, (derived) algebraic geometry, and number theory to explore these exciting new connections.

August 2020

Low-Dimensional Topology and Number Theory

gt.geometric-topology nt.number-theory
2020-08-23 through 2020-08-29
MFO
Oberwolfach; Germany

Meeting Type: conference

Contact: see conference website

Description

none