## Upcoming Talks

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

## Recent developments in Quantum Topology -- Cancelled --

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.

## Positivity, higher Teichmüller spaces and (non-commutative) cluster algebras

https://hu-berlin.zoom.us/j/61339297016

## Maxima of a Random Model of the Riemann Zeta Function over Intervals of Varying Length

Zoom Meeting ID: 919 6497 4060

For password see the email or contact Pieter Moree (moree@mpim...).

## Formalism of Perverse Sheaves

Zoom Meeting-ID: 994 2805 4844

For passcode please contact Christian Kaiser (kaiser@mpim...).

## Topological rigidity and low dimensional topology

## Bilinear discretization of quadratic vector fields: integrability and geometry

https://hu-berlin.zoom.us/j/61339297016

We discuss dynamics of birational maps which appear as bilinear discretizations of quadratic vector fields. The corresponding dynamical systems turn out to be integrable much more often than could be expected. Various aspects of integrability of birational dynamical systems will be discussed, along with remarkable geometric structures behind some of the particular examples.

## Perverse Sheaves and Morse Theory

Zoom Meeting-ID: 994 2805 4844

For passcode please contact Christian Kaiser (kaiser@mpim...).

## Geometry without spaces: a hyperbolic parable

We revisit old ideas that are shared by functional analysts and logicians alike, in order to do hyperbolic geometry without bothering with practicalities such as spaces or dimension.

Our main interest will be the interplay between (real or complex) hyperbolic geometry and group representations.

## tba

Meeting ID: 916 5855 1117

Password: as before.

Contact: Aru Ray and Tobias Barthel.

## Non-associative Moufang loop of point classes on a cubic surface

https://hu-berlin.zoom.us/j/61339297016

In this talk I will explain, how the problem stated in my book *Cubic Surfaces*, was recently solved by Dimitri Kanevsky, after about fifty years since its publication.

## Mathematical events in Bonn

##### Bonn Mathematics Calendar

All mathematical events in Bonn are listed in the Bonn Mathematics Calendar. For directions see the map.

##### University Calendar

All lectures and courses at Bonn University can be found in the university calendar.

## Recurring seminars, series and courses

Detailed list of recurring seminars, series of talks, and courses or lectures comprising multiple talks. For an overview see also the calendar.

## Friedrich Hirzebruch Lecture

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.

## MPI-Oberseminar

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.

## Representation theory learning seminar

## IMPRS Minicourse

## A study group on Milnor invariants

## IMPRS seminar on various topics: Hitchin systems

## Extra talk

## Seminar on Algebra, Geometry and Physics

## Archived Events

To narrow the list of events displayed please select year and event type or fill the search fields, then press *Apply*.

## MPI-Oberseminar

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

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.

## tba

https://hu-berlin.zoom.us/j/61339297016

## tba

https://hu-berlin.zoom.us/j/61339297016

## tba

The seminar is virtual via Zoom.

## tba

https://hu-berlin.zoom.us/j/61339297016

## tba

https://hu-berlin.zoom.us/j/61339297016

## tba

Please note the time.

## tba

The seminar is virtual via Zoom.

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