# Archived Events

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## MPI-Oberseminar

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Organiser(s):
C. Kaiser
Date:
Thu, 2013-01-31 15:00 - Thu, 2026-12-31 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

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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.

## Finite descent and the Lawrence--Venkatesh method

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Speaker:
Alexander Betts
Affiliation:
King's College London/MPIM
Date:
Wed, 2020-08-26 14:30 - 15:30
Parent event:
Number theory lunch seminar

If Y is a curve of genus at least 2 over a number field, then the finite descent obstruction cuts out a subset of the adelic points, which is
conjecturally equal to the set of rational points. In particular, we expect this set to be finite. In this talk, I will present ongoing work with Jakob
Stix proving that certain projections of the finite descent locus are finite, as predicted by this conjecture. The method we employ can be
loosely described as "Lawrence--Venkatesh for Grothendieck's section set".

## Questions

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Speaker:
Clark Barwick
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
University of Edinburgh
Date:
Thu, 2020-08-20 18:45 - 19:15

## Stratified spaces and exodromy, Part II

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Speaker:
Clark Barwick
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
University of Edinburgh
Date:
Thu, 2020-08-20 17:30 - 18:45

## Break

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Organiser(s):
Hongyi Chu & Bruno Stonek
Date:
Thu, 2020-08-20 17:00 - 17:30

## Questions

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Speaker:
Thomas Nikolaus
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
WWU Münster
Date:
Thu, 2020-08-20 16:30 - 17:00

## Higher Categories and Algebraic K-Theory, Part II

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Speaker:
Thomas Nikolaus
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
WWU Münster
Date:
Thu, 2020-08-20 15:15 - 16:30

## Questions

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Speaker:
Rune Haugseng
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
Norwegian University of Science and Technology
Date:
Thu, 2020-08-20 11:30 - 12:00

I will attempt to give a friendly introduction to the theory of $\infty$-operads, a powerful framework for working with homotopy-coherent algebraic structures. In the first talk I will introduce Lurie’s model of $\infty$-operads,  and in the second I will survey some other models, including extensions to enriched $\infty$-operads.

## Introduction to $\infty$-operads, Part II

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Speaker:
Rune Haugseng
Organiser(s):
Hongyi Chu & Bruno Stonek
Affiliation:
Norwegian University of Science and Technology
Date:
Thu, 2020-08-20 10:15 - 11:30

I will attempt to give a friendly introduction to the theory of $\infty$-operads, a powerful framework for working with homotopy-coherent algebraic structures. In the first talk I will introduce Lurie’s model of $\infty$-operads,  and in the second I will survey some other models, including extensions to enriched $\infty$-operads.

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