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Talk

Talks and seminars, possibly part of a conference or series.

Exact times and titles: to be announced

Posted in
Speaker: 
Vasily Golyshev and Duco van Straten
Date: 
Wed, 05/10/2022 - 00:00 - 00:01
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

Algebras of amenable representation type

Posted in
Speaker: 
Sebastian Eckert
Affiliation: 
MPIM
Date: 
Thu, 06/10/2022 - 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

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

 

Infinity local systems on classifying spaces and Lie theory

Posted in
Speaker: 
Camilo Arias Abad
Affiliation: 
Universidad Nacional de Colombia / MPIM
Date: 
Wed, 28/09/2022 - 10:30 - 12:00
Location: 
MPIM Lecture Hall

tba

Posted in
Speaker: 
Sarah Blackwell
Affiliation: 
University of Georgia/MPIM
Date: 
Mon, 10/10/2022 - 15:45 - 15:55
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

tba

Posted in
Speaker: 
Oussama Bensaid
Affiliation: 
Université Pierre et Marie Curie/MPIM
Date: 
Mon, 10/10/2022 - 15:30 - 15:40
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

tba

Posted in
Speaker: 
Sudipta Ghosh
Affiliation: 
Louisiana State University/MPIM
Date: 
Mon, 10/10/2022 - 15:15 - 15:25
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

tba

Posted in
Speaker: 
Nima Rasekh
Affiliation: 
MPIM
Date: 
Mon, 10/10/2022 - 15:00 - 15:10
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

r-th roots: better negative than positive

Posted in
Speaker: 
Nitin Kumar Chidambaram
Affiliation: 
University of Edinburgh
Date: 
Tue, 01/11/2022 - 14:00 - 15:00

Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

 

Higher real K-theories in chromatic homotopy theory

Posted in
Speaker: 
Guchuan Li
Affiliation: 
University of Michingan/MPIM
Date: 
Mon, 26/09/2022 - 15:15 - 15:25
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

Obstructions and realizations in K(n)-local stable homotopy theory

Posted in
Speaker: 
Paul VanKoughnett
Affiliation: 
MPIM
Date: 
Mon, 26/09/2022 - 15:45 - 15:55
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

Understanding exotic spheres through the stable stems

Posted in
Speaker: 
James D. Quigley
Affiliation: 
Cornell University/MPIM
Date: 
Mon, 26/09/2022 - 15:00 - 15:10
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

Khovanov homology in 4-manifolds

Posted in
Speaker: 
Isaac Sundberg
Affiliation: 
MPIM
Date: 
Mon, 26/09/2022 - 15:30 - 15:40
Location: 
MPIM Lecture Hall
Parent event: 
MPIM Topology Seminar

Hybrid talk.
Contact for details: Tobias Barthel, Viktoriya Ozornova, Aru Ray, Peter Teichner.

Introductory talk.

tba

Posted in
Speaker: 
Marko Berghoff
Affiliation: 
HU Berlin
Date: 
Tue, 29/11/2022 - 14:00 - 15:00

Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

Local wild mapping class groups

Posted in
Speaker: 
Gabriele Rembado
Affiliation: 
Gabriele Rembado (HCM Bonn)
Date: 
Tue, 22/11/2022 - 14:00 - 15:00
Location: 
MPIM Lecture Hall

Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

tba

Posted in
Speaker: 
Francisco Arana-Herrera
Affiliation: 
University of Maryland
Date: 
Tue, 15/11/2022 - 14:00 - 15:00

Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

Singular Chains on Lie groups, the Cartan relations, and Chern-Weil theory

Posted in
Speaker: 
Camilo Arias Abad
Affiliation: 
Universidad Nacional de Colombia / MPIM
Date: 
Wed, 21/09/2022 - 10:30 - 12:00
Location: 
MPIM Lecture Hall

For a Lie group $G$,  we consider the space of smooth singular chains $C(G)$, which is a differential graded Hopf algebra.  We show that the category of sufficiently local modules over $C(G)$ can be described infinitesimally, as the category of representations of a dg-Lie algebra which is universal for the Cartan relations. If $G$ is compact and simply connected, the equivalence of categories can be promoted to an A-infinity equivalence of dg-categories.

Solutions of the Yang-Baxter equation: groups, algebras and braces

Posted in
Speaker: 
Arne van Antwerpen
Affiliation: 
Vrije Universiteit Brussels
Date: 
Tue, 08/11/2022 - 14:00 - 15:00

Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

 

Bounded generation of Chevalley groups in the function field case [Note the change of time!]

Posted in
Speaker: 
Boris Kunyavski
Affiliation: 
Bar-Ilan University/MPIM
Date: 
Wed, 28/09/2022 - 16:30 - 17:30
Location: 
MPIM Lecture Hall
Parent event: 
Number theory lunch seminar

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


We shall discuss the problem of bounded generation of Chevalley groups with respect to elementary unipotents or commutators in the case where the base ring is Dedekind of arithmetic type. The new results were obtained in the case where the base ring is the ring of polynomials or Laurent polynomials over a finite field. In the talk, the focus is on arithmetic ingredients of the proof and on arithmetic problems arising in eventual generalizations.

The talk is based on joint work with E. Plotkin and N. Vavilov.

Universal operations on the Tate-Hochschild complex [Algebra, Geom. Phys. Seminar]

Posted in
Speaker: 
Ralph Kaufmann
Affiliation: 
Purdue University
Date: 
Tue, 18/10/2022 - 14:00 - 15:00
Location: 
Online talk

Online talk only.
Connection link: https://hu-berlin.zoom.us/j/61686623112
Contact: Gaetan Borot (gaetan.borot@hu-berlin.de)

 

Spaces with distinguished geodesics

Posted in
Speaker: 
Giuliano Basso
Affiliation: 
MPIM
Date: 
Thu, 22/09/2022 - 15:00 - 16:00
Location: 
MPIM Lecture Hall
Parent event: 
MPI-Oberseminar

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

 

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