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Upcoming Meetings


November 2018

Upstate New York Topology Seminar

at.algebraic-topology ct.category-theory gr.group-theory gt.geometric-topology kt.k-theory-and-homology mg.metric-geometry
2018-11-10 through 2018-11-11
University at Albany, State University of New York
Albany, NY; USA

Meeting Type: conference

Contact: Ellen Gasparovic, Brenda Johnson, Marco Varisco


UNYTS 2018 will take place on Saturday & Sunday, November 10 & 11, 2018, at the University at Albany, State University of New York. This weekend conference will feature plenary lectures on a broad range of topics in algebraic, geometric, and applied topology, as well as geometric group theory, given by:

For more information, please visit the conference webpage.

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


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


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


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.

Symplectic geometry and homotopy theory

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

Meeting Type: conference

Contact: Mohammed Abouzaid


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



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


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.

January 2019

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


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


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/

Derived Algebraic Geometry

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

Meeting Type: research program

Contact: see conference website


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.

February 2019

Braids, Resolvent Degree and Hilbert’s 13th Problem

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

Meeting Type: conference

Contact: see conference website



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


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

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



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

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


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.

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


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


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).

May 2019

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



June 2019

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

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


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


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

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


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
Lausanne, Vaud; Switzerland

Meeting Type: conference

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


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
Trondheim; Norway

Meeting Type: conference

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


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



Women in Topology III

2019-08-26 through 2019-08-30
Hausdorff Research Institute for Mathematics
Bonn; Germany

Meeting Type: workshop

Contact: Julie Bergner, Angélica Osorno, Sarah Whitehouse


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.