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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.

Student Seminar on Equivariant Cohomology

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Organiser(s): 
Christian Blohmann, Annika Tarnowsky
Date: 
Mon, 10/10/2022 - 14:00 - Fri, 03/02/2023 - 14:00
Location: 
MPIM Seminar Room

Course listing and General Information

Graduate Seminar on Advanced Geometry (S4D3)
Hauptseminar Geometrie (S2D1)
University of Bonn, Winter semester 2022/23

Topic 3c, Homotopy generators for the total fibre of the configuration cube

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Speaker: 
Peter Teichner
Affiliation: 
MPIM
Date: 
Mon, 12/12/2022 - 12:15 - 14:00
Location: 
MPIM Lecture Hall
Parent event: 
Lectures on "Topics in 4-manifolds"

MPIM Lecture Hall and Zoom (Id: 960 9156 6263).
Contact: Peter Teichner
 

Floer homology and non-fibered knot detection

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Speaker: 
Steven Sivek
Affiliation: 
MPIM
Date: 
Mon, 12/12/2022 - 14:30 - 15:30
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Please note the unusual starting time.

Hybrid.  Contact: Tobias Barthel, Viktoria Ozornova, Aru Ray and
Peter Teichner.

Complex-oriented cohomology theories and formal groups

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Speaker: 
Luuk Stehouwer
Affiliation: 
MPIM
Date: 
Tue, 13/12/2022 - 12:15 - 13:45
Location: 
MPIM Lecture Hall
Parent event: 
IMPRS seminar on various topics: formal groups

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

After reviewing some basics about spectra, I will show how certain cohomology theories give rise to 1-dimensional formal group laws. This is the foundational idea of the mathematical field called chromatic homotopy theory. I will provide ordinary cohomology, K-theory and bordism as examples.

On the topology of character varieties of once-punctured torus bundles

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Speaker: 
Stephan Tillmann
Affiliation: 
University of Sydney/MPIM
Date: 
Tue, 13/12/2022 - 14:00 - 15:00
Location: 
MPIM Lecture Hall
Parent event: 
Seminar on Algebra, Geometry and Physics/joint with HU Berlin

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

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

Arithmetic Transfer for inner forms of GL_2n

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Speaker: 
Andreas Mihatsch
Affiliation: 
Universität Bonn
Date: 
Tue, 13/12/2022 - 16:15 - 18:00
Location: 
MPIM Lecture Hall
Parent event: 
Arbeitsgemeinschaft Arithmetische Geometrie

Contact: Peter Scholze (scholze@mpim-bonn.mpg.de)

Characters of local systems

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Speaker: 
Bastiaan Cnossen
Affiliation: 
MPIM / University of Bonn
Date: 
Wed, 14/12/2022 - 10:30 - 12:00
Location: 
MPIM Lecture Hall
Parent event: 
Higher Differential Geometry Seminar

This is a follow-up of my talk on traces and categorification. I will explain in more detail how one defines characters of local systems on topological spaces, spell out the induced character formula in this setting, and describe how one may deduce a formula for the Becker-Gottlieb transfer of a fibration of spaces.

Limits of Mahler measures and successively exact polynomials

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Speaker: 
Riccardo Pengo
Affiliation: 
MPIM
Date: 
Wed, 14/12/2022 - 14:30 - 15:30
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

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

Categorical Torelli theorem for Fano varieties

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Speaker: 
Shizhuo Zhang
Affiliation: 
MPIM
Date: 
Thu, 15/12/2022 - 10:30 - 11:30
Location: 
MPIM Lecture Hall
Parent event: 
Seminar Algebraic Geometry (SAG)

Contact: Daniel Huybrechts.

 

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