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Upcoming Talks

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Abstracts of upcoming talks at the MPIM. For an overview see also the calendar.

Recent developments in Quantum Topology -- Cancelled --

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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.

Short lectures by new IMPRS students:

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Speaker: 
Pengcheng Zhang, Dominik Kirstein, Jonas Nehme, Lukas Bonfert
Date: 
Mon, 2022-01-24 10:15 - 11:45
Parent event: 
IMPRS seminar


For zoom details contact Christian Kaiser (kaiser@mpim-bonn.mpg.de)

Introduction to Fukaya categories

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Speaker: 
Jie Min
Affiliation: 
MPIM
Date: 
Mon, 2022-01-24 15:00 - 16:00
Parent event: 
Miniseries "Local methods in categorical symplectic geometry"
Parent event: 
MPIM Topology Seminar

For zoom details please contact T. Barthel, V. Ozornova, A. Ray, P. Teichner.

The double suspension theorem III

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Speaker: 
Arunima Ray
Affiliation: 
MPIM
Date: 
Tue, 2022-01-25 10:15 - 11:45
Parent event: 
IMPRS Minicourse

Abstract:

Pressure metric in the space of Riemannian metrics

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Speaker: 
Xian Dai
Affiliation: 
Heidelberg Universität
Date: 
Tue, 2022-01-25 13:45 - 15:30
Parent event: 
Seminar on Algebra, Geometry and Physics/joint with HU Berlin

https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot
 

Distinguishing Siegel eigenforms from Hecke eigenvalues

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Speaker: 
Arvind Kumar
Affiliation: 
The Hebrew University of Jerusalem
Date: 
Wed, 2022-01-26 14:30 - 15:30
Parent event: 
Number theory lunch seminar

Determination of modular forms is one of the fundamental and interesting
problems in number theory. It is known that if the Hecke eigenvalues of two
newforms agree for all but finitely many primes, then both the forms are
the same. In other words, the set of Hecke eigenvalues at primes determine
the newform uniquely and this result is known as the multiplicity one
theorem. In the case of Siegel cuspidal eigenforms of degree two, the
multiplicity one theorem has been proved only recently in 2018 by Schmidt.

A Fourier transform for Banach-Colmez spaces, II

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Speaker: 
Johannes Anschütz
Affiliation: 
Universität Bonn
Date: 
Thu, 2022-01-27 12:00 - 14:00
Parent event: 
Arbeitsgemeinschaft Arithmetische Geometrie

For zoom details please contact Peter Scholze (scholze@mpim...).

Hall algebras and quantum cluster algebras

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Speaker: 
Elie Casbi
Affiliation: 
MPIM
Date: 
Thu, 2022-01-27 15:00 - 16:00
Parent event: 
MPI-Oberseminar

The theory of Hall algebras has known many spectacular developments and applications since the discovery by Ringel of their connection with quantum groups. One important object arising naturally in the study of Hall algebras is the integration map defined by Reineke, which allows to produce certain celebrated wall-crossing identities. In this talk I will first focus on the Dynkin case and show how the integration map can be interpreted in a natural way via the representation theory of quantum affine algebras.

tba

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Speaker: 
Peter Topping
Affiliation: 
University of Warwick
Date: 
Thu, 2022-01-27 16:30 - 17:30
Parent event: 
Oberseminar Differentialgeometrie

Meeting-ID: 973 8400 7043
For password please contact Stephan Stadler (stadler@mpim-bonn.mpg.de).

 

Miniseries on symplectic topology, Talk 2

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Speaker: 
Nate Bottman
Affiliation: 
MPIM
Date: 
Mon, 2022-01-31 15:00 - 16:00
Parent event: 
Miniseries on symplectic topology
Parent event: 
MPIM Topology Seminar

For zoom details please contact T. Barthel, V. Ozornova, A. Ray, P. Teichner.

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