## Choose a sublist of interest

- Arithmetic Geometry
- ag.algebraic-geometry nt.number-theory
- Topology
- at.algebraic-topology gt.geometric-topology

## Or choose your own subject tags below

Welcome to MathMeetings.net! This is a list for research mathematics conferences, workshops, summer schools, etc.

There are a few other conference lists available, but this list
aims to be more complete by allowing *anyone at all* to add
announcements. Rather than use a wiki, announcement information is
stored in database format so that useful search functions can be
added as the list grows.

This site began as AlgTop-Conf, for meetings in algebraic topology. It is now expanded to serve other mathematics subjects. Use tag filtering to focus on announcements related to your discipline (see right or below).

## Know of a meeting not listed here? Add it now!

#### Updates 2016-01

- Now filter announcements by subject tags
- Form for editing announcements is now the same as that for adding new announcements
- New 'view' page for each announcement, and announcement data in confirmation emails
- Select boxes improved with select2 (jquery)

Additional update notes are available in the git repository (GitHub).

# Upcoming Meetings

## July 2017

### Floer homology and homotopy theory: summer school and conference

Meeting Type: Summer school

Contact: Andrew Blumberg

### Description

These two events will bring together symplectic geometers, low dimensional topologists, and algebraic topologists. The main goal will be to explore the use of homotopy theoretic methods in Floer theory. The summer school (July 10-15) will cover background material, aimed at familiarizing students and researchers with the material in each of the three fields. It will be followed by a research conference (July 17-21).

### Homotopy Theory: tools and applications

Meeting Type: conference

Contact: Daniel Davis, Mark W. Johnson, Charles Rezk, Vesna Stojanoska

### Description

Preliminary Announcement.

The aim of the conference is to survey recent advances in the fundamental tools of homotopy theory (including abstract homotopy theory, equivariant homotopy, obstruction-theoretic methods), to highlight future directions of research, including applications to chromatic homotopy theory, motivic homotopy theory, and derived algebraic geometry.

Speakers:

Agnes Beaudry, University of Chicago

Mark Behrens, University of Notre Dame

David Blanc, University of Haifa

Anna Marie Bohmann, Vanderbilt University

Hans-Werner Henn, University of Strasbourg

Kathryn Hess, EPFL

Mike Hopkins, Harvard University

Marc Hoyois *, MIT

Rick Jardine, University of Western Ontario

Magdalena Kedziorek, EPFL

Nitu Kitchloo, Johns Hopkins University

Tyler Lawson, University of Minnesota

Jacob Lurie, Harvard University

Haynes Miller, MIT

Jack Morava, Johns Hopkins University

Doug Ravenel, University of Rochester

Birgit Richter, University of Hamburg

Brooke Shipley, University of Illinois at Chicago

Zhouli Xu, University of Chicago

Inna Zakharevich, University of Chicago

*to be confirmed

Others interested in speaking are encouraged to contact the organizers.

Further information will become available at the conference website

http://www.math.illinois.edu/homotopy2017/index.html

and

questions to the conference organizers are welcome at

homotopy2017@math.uiuc.edu

Organizers:

Daniel Davis, University of Louisiana at Lafayette

Mark W. Johnson, Penn State Altoona

Charles Rezk, University of Illinois at Urbana-Champaign

Vesna Stojanoska, University of Illinois at Urbana-Champaign

### Topological and Geometric Methods in Quantum Field Theory (NSF-CBMS)

Meeting Type: Workshop, summer school,

Contact: David Ayala, Ryan Grady

### Description

NSF-CBMS conference: "Topological and Geometric Methods in Quantum Field Theory." http://www.math.montana.edu/cbms/ 31 July - 4 August 2017, Bozeman, Montana.

Expert Participants. Dan Freed (principle lecturer) Agnes Beaudry Robert Bryant Sam Gunningham Max Metlitski David Morrison Andy Neitzke

Abstract.
This event will be framed around a series of 10 somewhat self-contained lectures by Dan Freed concerning recent work using stable homotopy theory for predictive results in topological phases of matter. Other key experts will facilitate supplemental discussion sessions with the intent of offering background, context, and examples. The expertise of these participants will represent differential geometry, quantum field theory, and algebraic topology.

This event will be especially designed for graduate students and recent graduates, as well as experienced researchers aiming to enhance their pool of workable knowledge.

Registration. Please register through the event webpage: http://www.math.montana.edu/cbms/ . Deadline for registration is 19 March 2017; there is no registration fee.

There are NSF funds to fully support 30 participants, notably graduate students and recent graduates; these funds will cover food, board, and travel (within the United States). Application for such funding is part of the registration process.

Location. Bozeman, Montana, is an especially splendid place to be through this period of the summer. There are a host of trails near to town, and there is a modest, though active, downtown district.

For any further inquiries please send an email to Ryan Grady: ryan.grady1 at montana.edu .

## August 2017

### Summer School on Trace Methods in Algebraic K-Theory

Meeting Type: summer school

Contact: Benjamin Antieau

### Description

### Topology Ecuador 2017

Meeting Type: conference

Contact: Daniela Egas, Andrea Moreira, John Skukalek, Marc Stephan

### Description

This conference will cover a wide range of topics from algebraic topology to non-commutative geometry. Its purpose is to contribute to the development of these fields in Ecuador and to provide a meeting point for Latin-American mathematicians with other experts from around the world.

### Homotopy Theory in the Ecliptic: Chromatic, Equivariant, and Motivic Mathematics

Meeting Type: conference

Contact: Agnes Beaudry, Irina Bobkova, Safia Chettih, Mike Hill, John Lind, Kyle Ormsby, Angelica Osorno

### Description

### Low-dimensional Topology and Number Theory

Meeting Type: invitational conference

Contact: see conference website

### Description

Organisers

Paul E. Gunnells, Amherst

Walter D. Neumann, New York

Adam S. Sikora, New York

Don B. Zagier, Bonn

## September 2017

### Locally Symmetric Spaces: Analytical and Topological Aspects

Meeting Type: long-term research program

Contact: see conference website

### Description

During the 2017-18 academic year, the School will have a special program on Locally Symmetric Spaces: Analytical and Topological Aspects. Akshay Venkatesh of Stanford University will be the Distinguished Visiting Professor.

The topology of locally symmetric spaces interacts richly with number theory via the theory of automorphic forms (Langlands program). Many new phenomena seem to appear in the non-Hermitian case (e.g., torsion cohomology classes, relations with mixed motives and algebraic K-theory, derived nature of deformation rings). One focus of the program will be to try to better understand some of these phenomena.

Much of our understanding of this topology comes through analysis ("Hodge theory"). Indeed harmonic analysis on locally symmetric spaces plays a foundational role in the theory of automorphic forms and is of increasing importance in analytic number theory. A great success of such harmonic analysis is the Arthur-Selberg trace formula; on the other hand, the analytic aspects of the trace formula are not fully developed, and variants such as the relative trace formula are not as well understood. Thus analysis on such spaces, interpreted broadly, will be another focus of the program.

### 32nd British Topology Meeting (BTM32)

Meeting Type: conference

Contact: Andrew Tonks

### Description

The 32nd British Topology Meeting (BTM32) will be held at the University of Leicester from Wednesday 6th to Friday 8th of September 2017.

Invited speakers include:

- Moritz Groth (Universität Bonn)
- Jelena Grbić (University of Southampton)
- Magdalena Kędziorek (École polytechnique fédérale de Lausanne)
- Richard Hepworth (University of Aberdeen)
- Paolo Salvatore (Università di Roma "Tor Vergata")
- Markus Szymik (NTNU Trondheim)

The meeting is organised by Andy Tonks, Frank Neumann, Simona Paoli and Teimuraz Pirashvili.

There will be an opportunity for a number of contributed talks, and **postgraduate students and early career researchers are particularly encouraged to participate**.

Programme, registration and accommodation details are available at https://sites.google.com/view/btm32

We expect to cover expenses of all UK based research students and of all speakers. The meeting is supported by an LMS Conference grant.

### Groups explored through geometry and dynamics: A Conference in Celebration of Lee Mosher

Meeting Type: conference

Contact: see conference website

### Description

**Minicourse by Lee Mosher: TBA**

**Speakers Include:**

- Yael Algom-Kfir (Haifa University)
- Jason Behrstock (CUNY)
- Spencer Dowdall (Vanderbilt University)
- Tullia Dymarz (University of Wisconsin, Madison)
- Benson Farb (University of Chicago)
- David Gabai (Princeton University)
- Michael Handel (CUNY)
- Autumn Kent (University of Wisconsin, Madison)
- Catherine Pfaff (University of California, Santa Barbara)
- Jing Tao (University of Oklahoma)

### Geometric topology in low dimensions

Meeting Type: conference

Contact: see conference website

### Description

The resolution of many of Thurston's prophetic questions about the structure of 3-manifolds has generated a vast array of techniques which permeate many of the areas covered by the symposium.

As is often the case, the resolution of old conjectures has led to intriguing new questions, which will be the focus of this workshop. Examples include: given a combinatorial or arithmetic presentation of a 3--manifold, describe its geometric structure concretely (''effective geometrisation''); understand the geometry of the Thurston unit norm ball, for example how it behaves under taking towers of covers; understand the connection between Heegard-Floer homology and orderability of fundamental groups. Several old conjectures, such as the simple loop conjecture for surfaces in three-manifolds and the conjecture that a quasifuchsian group is determined by its pleating laminations, continue to motivate work.

Links with other workshop areas include a renewed focus on computation in 3-manifold theory, the use of special cube complexes via the Agol-Wise machinery, used to resolve several of the conjectures which remained after Perelman's solution to the Geometrisation conjecture, and the geometry and combinatorics of complexes of discs and spheres in 3-manifolds, which have been used to investigate the structure of outer automorphism groups of free groups.

### Workshop: Non-Positively Curved Groups and Spaces

Meeting Type: workshop

Contact: Alexander Engel

### Description

There will be 3 mini-courses (each 3 lectures 75 min. long) and around 9 invited and contributed talks. Deadline for applications for contributed talks is May 15th, 2017.

### Higher Invariants

Meeting Type: conference

Contact: see conference website

### Description

The aim is to bring together researchers who are interested in group theory and applications thereof to the topology and geometry of manifolds.

## October 2017

### Workshop on motivic and equivariant homotopy theory

Meeting Type: workshop

Contact: Martin Frankland, Manh Toan Nguyen, Konrad Voelkel

### Description

See the website.

### Topology and Geometry of Low-dimensional Manifolds

Meeting Type: conference

Contact: see conference website

### Description

**Invited Speakers**

- Tsukasa Ishibashi (The University of Tokyo)
- Yusuke Kuno (Tsuda University)
- Christine Lescop (Université Grenoble Alpes, Institut Fourier, CNRS)
- Shigeyuki Morita (The University of Tokyo/Tokyo Institute of Technology)
- Takahiro Oba (Tokyo Institute of Technology)
- Athanase Papadopoulos (IRMA, Université de Strasbourg, CNRS)
- Shunsuke Tsuji (The University of Tokyo)
- Akira Yasuhara (Tsuda University)

### No Boundaries: A celebration of the mathematical contributions of Benson Farb

Meeting Type: conference

Contact: see conference website

### Description

## November 2017

### Special Session in Homotopy Theory

Meeting Type: Special Session

Contact: Jonathan Beardsley

### Description

Special session in homotopy theory at the AMS Western Sectional Meeting.

### Midwest Topology Seminar

Meeting Type: conference

Contact: Dan Isaksen

### Description

The Fall 2017 meeting of the Midwest Topology Seminar will be held at Wayne State University in Detroit, Michigan on Saturday 11 November. See the conference website for more details.

### Winter school: Categorification, representation theory and symplectic geometry

Meeting Type: Winter school

Contact: Anne-Laure Thiel, Daniel Tubbenhauer

### Description

There is a fruitful interplay between categorification, representation theory and symplectic geometry, and our intention is to highlight some of them in detail.

We hope to bring together researchers as well as students who want to learn more about the various presented aspects of the broad fields categorification, representation theory and symplectic geometry.

Please make sure that you register due to seats constraints. (Application deadline is the 31th of July 2017.)

### Workshop: Categorification, representation theory and symplectic geometry

Meeting Type: Workshop

Contact: Anne-Laure Thiel, Daniel Tubbenhauer

### Description

There is a fruitful interplay between categorification, representation theory and symplectic geometry, and our intention is to highlight some of them in detail.

We hope to bring together researchers as well as students who want to learn more about the various presented aspects of the broad fields categorification, representation theory and symplectic geometry.

Please make sure that you register due to seats constraints. (Application deadline is the 31th of July 2017.)

## July 2018

### Higher structures in homotopy theory

Meeting Type: conference

Contact: Clark Barwick, Julie Bergner, Ieke Moerdijk, Stefan Schwede, Paul Goerss

### Description

Part of the Semester Programme "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 particular workshop will focus on the last of these themes.

## August 2018

### International Congress of Mathematicians

Meeting Type: international congress

Contact: see conference website

### Description

Satellite conferences will appear later with their own entries.

### Equivariant and motivic homotopy theory

Meeting Type: workshop

Contact: John Greenlees, Lars Hesselholt, Mike Hill, Dan Isaksen, 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 equivariant homotopy theory and its applications.

## September 2018

### Derived algebraic geometry and chromatic homotopy theory

Meeting Type: conference

Contact: Mark Behrens, David Gepner, Paul Goerss, Mike Hopkins, Tyler Lawson,

### 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 derived algebraic geometry and the interplay with stable homotopy theory.

## December 2018

### Manifolds

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.

## January 2019

### Derived Algebraic Geometry

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.

## March 2019

### Derived algebraic geometry and its applications

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.