# Seminar

Series of talks or seminars.

## Friedrich Hirzebruch Lecture

Posted in
Location:
University Club Bonn

The annual Friedrich Hirzebruch Lecture is a series of lectures started in 2007 on the occasion of the 80th birthday of Prof. Friedrich Hirzebruch. The lectures address a general audience and aim at illustrating the relation between mathematics and art, society and other fields.

## MPI-Oberseminar

Posted in
Organiser(s):
C. Kaiser
Date:
Thu, 31/01/2013 - 15:00 - Thu, 31/12/2026 - 16:00
Location:
MPIM Lecture Hall

The Oberseminar is a very long running seminar at MPI (‘Ober‘ standing for 'upper'). Its idea is that the guests of the MPI speak in this seminar (hopefully early in their stay) and get the chance to explain their work to the other guests.

This often leads to further mathematical interaction, and in any case it is very interesting to know what one's colleagues are working on.

This implies two things:

1. When you speak at the Oberseminar you should try to make sure that your talk is understandable and interesting to everyone, not just to the people in the same field. (We have many specialized seminars where you can present your work at a more technical level.)
2. Please always attend the Oberseminar, even if the title of the talk seems technical, because you know that the speaker is going to do a good job. The only reason for absence is that the talk is in your field and thus will be too easy for you.

We hope to see you at the Oberseminar!

Christian Kaiser (organizer)

The directors:
Prof. Ballmann (em.)
Prof. Faltings
Prof. Gaitsgory
Prof. Harder (em.)
Prof. Hirzebruch †
Prof. Manin (em.)
Prof. Scholze
Prof. Teichner
Prof. Zagier (em.)

Upcoming talks

### Thu, 13 Oct 2022

15:00 - 16:00
Laurentiu Maxim

Past talks

For the abstracts click on the titles or see the list of abstracts.

15:00 - 16:00
Sebastian Eckert

15:00 - 16:00
Dennis Gaitsgory

15:00 - 16:00
Giuliano Basso

### Thu, 08 Sep 2022

15:00 - 16:00
Alexander Degtyarev

15:00 - 16:00
Nikita Karpenko

15:00 - 16:00
Ualbai Umirbaev

15:00 - 16:00
Renjie Feng

15:00 - 16:00
Till Hauser

15:00 - 16:00
Nikolas Kuhn

15:00 - 16:00
Charanya Ravi

15:00 - 16:00
Ralph Kaufmann

15:00 - 16:00
Weimin Chen

15:00 - 16:00
Luigi Pagano

15:00 - 16:00
Nikolas Kuhn

15:00 - 16:00
Enno Keßler

15:00 - 16:00
Fanny Kassel

15:00 - 16:00
João Lourenço

### Thu, 14 Apr 2022

15:00 - 16:00
Ogier van Garderen

15:00 - 16:00
Antonio Miti

15:00 - 16:00
Yuriy Drozd

15:00 - 16:00
Bart Vlaar

### Thu, 17 Mar 2022

15:00 - 16:00
Timothy Logvinenko

15:00 - 16:00
Maxim Kontsevich

15:00 - 16:00
Theo Marty

15:00 - 16:00
Martin Gallauer

15:00 - 16:00
Huajie Li

15:00 - 16:00
Yannik Krifka

15:00 - 16:00
Elie Casbi

15:00 - 16:00
Julian Demeio

15:00 - 16:00
Louis Ioos

15:00 - 16:00
Ursula Ludwig

15:00 - 16:00
Yongquan Zhang
15:00 - 16:00
Yongquan Zhang

15:00 - 16:00
Biji Wong

15:00 - 16:00
Dominic Culver

15:00 - 16:00
Haoyang Guo

15:00 - 16:00
Scott Balchin

15:00 - 16:00
Jie Min

### Thu, 04 Nov 2021

15:00 - 16:00
Aleksandar Milivojevic

14:30 - 15:30
Elia Fioravanti

15:00 - 16:00
Longting Wu

15:00 - 16:00
Boris Okun

15:00 - 16:00
Alexander Thomas

15:00 - 16:00
Joel Villatoro

15:00 - 16:00
Lukas Müller

### Thu, 16 Sep 2021

15:00 - 16:00
Christian Haesemeyer

15:00 - 16:00
Paul Wedrich

15:00 - 16:00
John Bergdall

## IMPRS seminar on various topics: thesis work

Posted in
Organiser(s):
Christian Kaiser
Date:
Tue, 11/10/2022 - 12:15 - 13:45

Contact: Christian Kaiser (kaiser@mpim-bonn.mpg.de)

## Oberseminar Geometrie

Posted in
Organiser(s):
Alan Reid (MPIM), Ursula Hamenstädt (Universität Bonn)
Date:
Fri, 20/05/2022 - 15:30 - 16:30

## Working Seminar in Differential Geometry

Posted in
Speaker:
Fanny Kassel
Organiser(s):
Elia Fioravanti, Ursula Hamenstädt, Stephan Stadler
Affiliation:
IHES
Date:
Thu, 05/05/2022 - 10:30 - 11:45
Location:
MPIM Lecture Hall

## IMPRS seminar on various topics: $\infty$-categories

Posted in
Organiser(s):
Christian Kaiser
Date:
Mon, 02/05/2022 - 12:15 - 13:45

For zoom details contact Christian Kaiser (kaiser@mpim...)

## Miniseries "An introduction to homotopy type theory and univalent foundations"

Posted in
Organiser(s):
Barthel, Ozornova, Ray, Teichner
Date:
Mon, 14/03/2022 - 15:00 - 16:00

For zoom details contact: Barthel, Ozornova, Ray, Teichner.

Miniseries abstract:
The field of homotopy type theory/univalent foundations (HoTT/UF) presents a new connection between topology and logic. It provides a foundational framework for mathematics where equivalent objects are identified. Moreover, in HoTT the basic objects carry homotopical information making it possible to do homotopy theory in a synthetic way. Using appropriate software, the proofs in HoTT/UF can be verified on a computer.

In this mini series, we'll give an introduction to the fundamental ideas of HoTT. The first talk by Jonathan Weinberger gives an introduction to the language of HoTT with a few hints on how this allows for doing synthetic homotopy theory. In the second talk, Léonard Guetta discusses the higher groupoidal structures of path/identity types and relations to Grothendieck's Homotopy Hypothesis. The final talk is given by Paige Randall North (University of Pennsylvania) and provides a detailed discussion of the Univalence Principle, going back to Vladimir Voevodsky, which states that equivalent mathematical structures are indistinguishable.

## Miniseries "Local methods in categorical symplectic geometry"

Posted in
Organiser(s):
Barthel, Ozornova, Ray, Teichner
Date:
Mon, 24/01/2022 - 15:00 - 16:00

Miniseries abstract: The Fukaya category is an invariant of a symplectic manifold governing the intersection theory of its Lagrangian submanifolds, built from the pseudoholomorphic disks which bound these Lagrangians. One particularly important version for non-compact symplectic manifolds is the partially wrapped Fukaya category, which plays a prominent role in homological mirror symmetry. This miniseries will lead up to a toolbox for computing and studying structural properties of partially wrapped Fukaya categories. One of the key tools is a descent formula, i.e. a cosheaf property with respect to Weinstein sectorial coverings. We will emphasize concrete examples, and homological mirror symmetry will be a recurring point of reference.

## Miniseries on symplectic topology

Posted in
Organiser(s):
T. Barthel, V. Ozornova, A. Ray, P. Teichner
Date:
Mon, 17/01/2022 - 15:00 - 16:00

## IMPRS seminar on various topics: Von Neumann algebras

Posted in
Organiser(s):
Christian Kaiser
Date:
Mon, 13/12/2021 - 10:15 - 11:45

## IMPRS seminar on various topics: Period Polynomials and Meromorphic Modular Forms

Posted in
Date:
Mon, 01/11/2021 (All day) - Tue, 30/11/2021 (All day)

Meeting-ID: 994 2805 4844

For passcode contact Christian Kaiser (kaiser@mpim...).

## Mini series "Motivic tensor-triangular geometry"

Posted in
Organiser(s):
Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner
Date:
Mon, 29/11/2021 - 15:00 - 16:00

Tensor-triangular geometry is a geometric approach to certain classification problems in a wide variety of contexts, ranging from topology to representation theory and algebraic geometry. In a series of three talks we will introduce the audience to this approach, particularly geared towards the study of cohomological (or, "motivic") aspects of algebraic varieties. In the last few years, this has unearthed interesting structures in categories of motives which we will report.

## Seminar on Mathematics of quantum field theory

Posted in
Organiser(s):
Peter Teichner, David Reutter
Date:
Tue, 09/11/2021 - 15:30 - Tue, 20/12/2022 - 17:00

Posted in
Organiser(s):
Peter Scholze

## IMPRS seminar on various topics: Lie groupoids and Lie algebroids

Posted in
Organiser(s):
Christian Kaiser
Affiliation:
MPIM
Date:
Mon, 11/10/2021 - 10:15 - 11:45

Meeting-ID: 994 2805 4844
For passcode contact Christian Kaiser (kaiser@mpim...).

## IMPRS seminar on various topics: Perverse sheaves

Posted in
Organiser(s):
Christian Kaiser
Date:
Wed, 21/04/2021 - 16:15 - 17:45

Upcoming talks

Past talks

For the abstracts click on the titles or see the list of abstracts.

16:15 - 17:45
Mingjia Zhang

16:15 - 17:45
Axel Koelschbach

### Wed, 21 Apr 2021

16:15 - 17:45
Gregory Andreychev

## IMPRS seminar on various topics: Yang Baxter equation

Posted in
Organiser(s):
Christian Kaiser
Affiliation:
MPIM
Date:
Fri, 09/04/2021 - 14:15 - Sun, 31/10/2021 - 15:45

## IMPRS seminar on various topics: Beauville decomposition for Chow groups of abelian varieties

Posted in
Organiser(s):
Christia Kaiser
Date:
Thu, 21/01/2021 - 14:15 - 15:45

## IMPRS seminar on various topics: Maass Forms and Mock Modular Forms

Posted in
Organiser(s):
Christian Kaiser
Affiliation:
MPIM
Date:
Thu, 07/01/2021 - 14:15 - 15:45

## IMPRS seminar on various topics: The Adams Spectral Sequence

Posted in
Organiser(s):
Christian Kaiser
Affiliation:
MPIM
Date:
Fri, 13/11/2020 - 14:15 - 15:45
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