# Veranstaltungen

Konferenzen, Seminare, Vorträge und andere Veranstaltungen am MPIM

Posted in

## Twinned Conference on Homotopy Theory with Applications to Arithmetic and Geometry

Posted in
Datum:
Mon, 27/06/2022 - 08:00 - Don, 30/06/2022 - 16:00

## Twinned Conference on Homotopy Theory with Applications to Arithmetic and Geometry, June 27 - 30, 2022

The field of homotopy theory originated in the study of topological spaces up to deformation, but has since been applied effectively in several other disciplines. Indeed, homotopical ideas led to the resolution of several long-standing open conjectures, for instance on smooth structures on spheres, the moduli of curves, and the cohomology of fields. More recently, Bhatt, Morrow, and Scholze used homotopical methods to compare different cohomology theories for algebraic varieties, thereby resolving open questions in arithmetic geometry. In a similarly arithmetic vein, Galatius and Venkatesh initiated the study of Galois representations with homotopical means, whereas Clausen and Scholze revisited the foundations of analytic topology. These and other recent developments in the interface of arithmetic and topology opened up new lines of attack towards classical open questions, which sparked a wide range of current research activities. This conference intends to survey some of the most spectacular recent advances in the fields, thereby paving the way to new developments and future interactions. Our goal is to foster scientific exchange and collaboration between established researchers, emerging leaders, early career mathematicians, and graduate students.

This will be a split transatlantic conference taking place at the Fields Institute in Canada and the Max Planck Institute for Mathematics in Germany, with videoconferencing connections in place to help collaboration. The concept of the twinned conference was motivated by the desire to reduce environmental impact of conference travels. Our hope is that this initiative will help reduce transatlantic flights, while still promoting long distance interactions. The goal of this twinned conference is to bring together experts on Homotopy Theory and adjacent areas to discuss the forefront of current developments in this highly active field.

We especially welcome applications from members of minority groups.

## Virtual ICM 2022. Live stream and in person talks at the Max Planck Institute for Mathematics

Posted in
Datum:
Die, 05/07/2022 (All day) - Don, 14/07/2022 (All day)

The International Congress of Mathematicians 2022 (ICM 2022), which was originally planned for St. Petersburg, will now take place as a fully virtual event over 5–14 July 2022. In order to keep some of the spirit of the ICM, all talks will be streamed live in the MPIM lecture hall. Three of the talks will be given in person at MPIM by Bernhard Schölkopf, Marc Levine, and Catharina Stroppel.

## A conference on Algebraic Topology, in memory of Hans-Joachim Baues

Posted in
Datum:
Mon, 17/10/2022 - 08:00 - Fre, 21/10/2022 - 16:00

## A conference on Algebraic Topology, in memory of Hans-Joachim Baues

This conference is intended to provide an overview of current research in homotopy theory, which has vastly expanded since its roots in the 19th century from the study of topological spaces by algebraic and combinatorial means to other fields of mathematics, including algebraic geometry, differential topology, and mathematical physics.

## Kommende Vorträge

Posted in

Ausführliche Liste aller demnächst stattfindenden Vorträge und Seminare. Für eine Übersicht konsultieren Sie bitte auch den Kalender.

## Recent developments in Quantum Topology -- Cancelled --

Posted in

We will review the basics of quantum topology such as the colored Jones polynomial of a knot, its standard conjectures relating to asymptotics, arithmeticity and modularity, as well as the recent quantum hyperbolic invariants of Kashaev et al, their state-integrals and their structural properties. The course is aimed to be accessible by graduate students and young researchers.

## On the Farell-Jones conjecture for localizing invariants

Posted in
Speaker:
Ulrich Bunke || GER
Zugehörigkeit:
University of Regensburg
Datum:
Mon, 27/06/2022 - 11:05 - 11:35
 This is a report on a joint project with D. Kasprowski and C. Winges. To every left-exact infinity category with a G-action and a finitary localizing invariant with target C we associate a functor from the orbit category of G to C. The Farrell-Jones conjecture asserts that this functor is equivalent to the left-Kan of its restriction to the subcategory of orbits whose stabilizers are vitually cyclic.

## Semi-topological K-theory of dg-algebras and the lattice conjecture

Posted in
Speaker:
Andrei Konovalov || GER
Zugehörigkeit:
NRU HSE
Datum:
Mon, 27/06/2022 - 11:45 - 12:15

I will discuss the problem of constructing a natural rational structure on periodic cyclic homology of dg-algebras and dg-categories. The promising candidate is A. Blanc’s topological K-theory. I will show that it, indeed, provides a rational structure in a number of cases and I will discuss its structural properties and possible applications.

## The Van Est isomorphism, part II [IMPRS Seminar]

Posted in
Speaker:
Zugehörigkeit:
Universität Bonn
Datum:
Mon, 27/06/2022 - 12:30 - 14:00
Parent event:
IMPRS-seminar on Lie groups

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

## Analytic Geometry

Posted in
Speaker:
Peter Scholze || GER
Zugehörigkeit:
MPIM
Datum:
Mon, 27/06/2022 - 15:00 - 15:45

We will discuss some of our joint work with Dustin Clausen on Analytic Geometry, based on Condensed Mathematics.

## Reflection

Posted in
Speaker:
David Ayala || CA
Zugehörigkeit:
Montana State University
Datum:
Mon, 27/06/2022 - 16:15 - 17:00

This talk will introduce a notion of a stratification of a (stable presentable) category. A stratification of a scheme determines a stratification of its category of quasi-coherent sheaves. A stratification of a topological space determines a stratification of its category of linear sheaves. Such a stratification determines two reconstruction theorems, each reconstructing the category in terms of its strata and gluing data. An abelian group can be reconstructed in terms of its p-completions and its rationalization, as well as from its p-torsion and its corationalization.

## Artin reciprocity via spheres

Posted in
Speaker:
Dustin Clausen || GER
Zugehörigkeit:
University of Copenhagen
Datum:
Mon, 27/06/2022 - 17:30 - 18:15

I will explain a very strange proof of the Artin reciprocity law.  At the heart of it is the construction of a sphere from every locally compact Q-vector space.

## Elliptic Zeta functions (only remotely)

Posted in
Speaker:
Isra Shbeil || GER
Zugehörigkeit:
University of Jordan
Datum:
Die, 28/06/2022 - 11:00 - 11:30

In this talk, I speak about establishing a close connection between three notions attached to a modular subgroup, namely, the set of weight two meromorphic modular forms, the set of equivariant functions on the upper half-plane commuting with the action of the modular subgroup, and the set of elliptic zeta functions generalizing the Weierstrass zeta functions. In particular, we show that the equivariant functions can be parameterized by modular objects as well as by elliptic objects.

## The homology of configuration-section spaces

Posted in
Speaker:
Martin Palmer-Anghel || GER
Zugehörigkeit:
Mathematical Institute of the Romanian Academy, Bucharest
Datum:
Die, 28/06/2022 - 11:45 - 12:15
 Configuration-section spaces parametrise fields with singularities on a given manifold, and may be viewed as an enrichment of configuration spaces by non-local data.

## Renormalisation of stochastic partial differential equations [AG&Phys Seminar/Zoom only]

Posted in
Speaker:
Yvain Bruned
Zugehörigkeit:
University of Edinburgh
Datum:
Die, 28/06/2022 - 13:45 - 15:30

Online talk only.

https://hu-berlin.zoom.us/j/61686623112

Contact: Gaetan Borot (HU Berlin, gaetan.borot@hu-berlin.de)

## Mathematische Veranstaltungen in Bonn

Posted in
##### Bonner Mathematik-Kalendar

Alle mathematischen Veranstaltungen in Bonn sind im Veranstaltungskalender der Bonner Mathematik aufgeführt. Die Veranstaltungsorte finden Sie auf dieser Karte.

##### Vorlesungsverzeichnis

Alle Vorlesungen und Kurse der Universität Bonn finden Sie im Vorlesungsverzeichnis.

## Regelmäßige Seminare, Reihen und Kurse

Posted in

Ausführliche Liste regelmäßig stattfindender Seminare, Vortrags-Reihen und Kurse oder Vorlesungen, die aus mehreren Vorträgen bestehen. Für eine Übersicht konsultieren Sie bitte auch den Kalender.

## 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
Datum:
Don, 31/01/2013 - 15:00 - Don, 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.

Posted in

## Representation theory learning seminar

Posted in
Organiser(s):
Hankyung Ko, Emily Norton, Thorsten Heidersdorf

Posted in
Organiser(s):
C. Kaiser

## A study group on Milnor invariants

Posted in
Organiser(s):
Danica Kosanovich
Zugehörigkeit:
MPIM
Location:
MPIM Seminar Room

## IMPRS seminar on various topics: Hitchin systems

Posted in
Organiser(s):
Christian Kaiser
Location:
MPIM Seminar Room

## Extra talk

Posted in

This is a collection of extra talks that don't fit into the other series.

Posted in
Organiser(s):
Peter Scholze

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

Posted in

Meeting-ID: 994 2805 4844

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

## Zurückliegende Veranstaltungen

Posted in

Füllen Sie die Suchfelder aus und drücken die Anwenden, um die Liste der angezeigten Veranstaltungen einzuschränken.

## MPI-Oberseminar

Posted in
Organiser(s):
C. Kaiser
Datum:
Don, 31/01/2013 - 15:00 - Don, 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.

## 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.

## A conference on Algebraic Topology, in memory of Hans-Joachim Baues

Posted in
Datum:
Mon, 17/10/2022 - 08:00 - Fre, 21/10/2022 - 16:00

## A conference on Algebraic Topology, in memory of Hans-Joachim Baues

This conference is intended to provide an overview of current research in homotopy theory, which has vastly expanded since its roots in the 19th century from the study of topological spaces by algebraic and combinatorial means to other fields of mathematics, including algebraic geometry, differential topology, and mathematical physics.

## tba

Posted in
Speaker:
Ivan Horozov
Zugehörigkeit:
MPIM/City University of New York, Bronx
Datum:
Mit, 20/07/2022 - 14:30 - 15:30
Parent event:
Number theory lunch seminar

Contact: Pieter Moree (moree@mpim-bonn.mpg.de)

## The beauty of braids - from knot invariants to higher categories

Posted in
Speaker:
Catharina Stroppel
Zugehörigkeit:
Universität Bonn
Datum:
Mit, 13/07/2022 - 10:15 - 11:15
Location:
MPIM Lecture Hall

Via different perspectives on braids we indicate how the search for topological invariants leads to crucial developments in representation theory and to speculations on higher topological invariants and TQFTs.

https://icm2022.abstractserver.com/program/#/details/sessions/55

## Motivic Cohomology: past, present and future

Posted in
Speaker:
Marc Levine
Zugehörigkeit:
Universität Duisburg-Essen
Datum:
Die, 12/07/2022 - 14:15 - 15:00
Location:
MPIM Lecture Hall

I will give a brief overview of the development of motivic cohomology, its parallels with singular cohomology and its place in motivic stable homotopy theory. I will then describe some of the recent off-shoots of motivic cohomology: cycles with modulus, Chow-Witt theory, and motivic filtrations on p-adic K-theory, and conclude with some speculations on future developments.

https://icm2022.abstractserver.com/program/#/details/sessions/211

## From statistical to causal learning

Posted in
Speaker:
Bernhard Schölkopf
Zugehörigkeit:
MPI for Intelligent Systems, Tübingen
Datum:
Mon, 11/07/2022 - 14:15 - 15:00
Location:
MPIM Lecture Hall

We describe basic ideas underlying research to build and understand artificially intelligent systems: from symbolic approaches via statistical learning to interventional models relying on concepts of causality. Some of the hard open problems of machine learning and AI are intrinsically related to causality, and progress may require advances in our understanding of how to model and infer causality from data.

https://icm2022.abstractserver.com/program/#/details/sessions/207

## Rogers-Ramanujan type identities and arc spaces [AG&Phys Seminar/Zoom]

Posted in
Speaker:
Zugehörigkeit:
Institut Mathematique de Jussieu
Datum:
Die, 05/07/2022 - 13:45 - 15:30

Online talk only.

https://hu-berlin.zoom.us/j/61686623112

Contact: Gaetan Borot (HU Berlin, gaetan.borot@hu-berlin.de)

## Virtual ICM 2022. Live stream and in person talks at the Max Planck Institute for Mathematics

Posted in
Datum:
Die, 05/07/2022 (All day) - Don, 14/07/2022 (All day)

The International Congress of Mathematicians 2022 (ICM 2022), which was originally planned for St. Petersburg, will now take place as a fully virtual event over 5–14 July 2022. In order to keep some of the spirit of the ICM, all talks will be streamed live in the MPIM lecture hall. Three of the talks will be given in person at MPIM by Bernhard Schölkopf, Marc Levine, and Catharina Stroppel.

## Detecting non-permutative elements of $K_1(\text{Var})$ using point counting

Posted in
Speaker:
Inna Zakharevich || CA
Zugehörigkeit:
Cornell University
Datum:
Don, 30/06/2022 - 17:30 - 18:15

The Grothendieck ring of varieties is defined to be the free abelian group generated by varieties (over some base field $k$) modulo the relation that for a closed immersion $Y\to X$ there is a relation that $[X] = [Y] + [X \setminus Y]$. This structure can be extended to produce a space whose connected components give the Grothendieck ring of varieties and whose higher homotopy groups represent other geometric invariants of varieties. This structure is compatible with many of the structures on varieties.

 © MPI f. Mathematik, Bonn Impressum & Datenschutz