Skip to main content

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.

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

Posted in
Speaker: 
Hussein Mourtada
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)

[Oberseminar Diff. Geometry/Venue: Lipschitz-Saal, Endenicher Allee 60] "Stability of hyperbolic metrics"

Posted in
Speaker: 
Frieder Jäckel
Zugehörigkeit: 
Universität Bonn
Datum: 
Don, 07/07/2022 - 16:30 - 17:30

Please note the VENUE of this talk:
Lipschitz-Saal, Endenicher Allee 60, Math. Center, Bonn University.
Contact: Stephan Stadler (stadler@mpim-bonn.mpg.de).

 

We show that if a 3-manifold admits a metric of finite volume
that is almost hyperbolic in a suitable, then there exists a hyperbolic
metric that is close to the given metric in the $C^{2,\alpha}$-topology.
We then discuss an application of this result to the drilling and filling of
hyperbolic 3-manifolds. The talk is based on joint work with Ursula
Hamenstädt.

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

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

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

[Obersem. Diff. Geometry/Venue: Math. Center, Endenicher Allee 60] "The Yamabe Invariant of Complex Surfaces"

Posted in
Speaker: 
Michael Albanese
Zugehörigkeit: 
Université du Québec à Montréal
Datum: 
Don, 14/07/2022 - 16:30 - 17:30

Please note the VENUE of this talk:
Math Center, Endenicher Allee 60, Room 0.011, Bonn University.
Contact: Stephan Stadler (stadler@mpim-bonn.mpg.de).

 

The Yamabe invariant is a real-valued diffeomorphism invariant coming from Riemannian geometry. Using Seiberg-Witten theory, LeBrun showed that the sign of the Yamabe invariant of a Kähler surface is determined by its Kodaira dimension. We consider the extent to which this remains true when the Kähler hypothesis is removed. This is joint work with Claude LeBrun.

 

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)

© MPI f. Mathematik, Bonn Impressum & Datenschutz
-A A +A