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Lecture

Lecture or course consisting of one or several talks.

Minicourse on Structure of Modular Categories

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Speaker: 
Alexei Davydov
Affiliation: 
Ohio University/MPIM
Date: 
Fri, 2019-05-31 12:00 - 13:00
Location: 
MPIM Seminar Room

Modular fusion categories are mathematical structures appearing in mathematical physics (high energy and now condensed matter physics) and low dimensional topology (3d topological field theories).
The course will give an (elementary and example based) introduction to them and their very rough structure theory, governed by
the so-called Witt group of modular categories.

Felix Klein Lectures

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Date: 
Thu, 2019-05-16 10:15 - 12:15
Location: 
MPIM Lecture Hall

Course by Prof. Don Zagier

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Speaker: 
Don Zagier
Affiliation: 
MPIM
Date: 
Tue, 2019-04-02 16:30 - Tue, 2019-07-02 18:00
Location: 
MPIM Lecture Hall

The course is meant to provide an informal and elementary introduction to
some of the notions of vertex operator algebras and conformal field theory,
to the modularity properties of the corresponding characters, and to the
“modular linear differential equations” satisfied by these modular forms

IMPRS Minicourse on Translation surfaces of infinite-type

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Organiser(s): 
Vincent Delecroix, Ferrán Valdez
Affiliation: 
MPIM
Date: 
Mon, 2019-05-06 10:00 - 12:00

Colloquium

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Date: 
Thu, 2019-02-21 15:00 - Mon, 2029-04-30 16:00
Location: 
MPIM Lecture Hall

Mini-course "The Kontsevich (un)oriented graph complex"

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Speaker: 
Arthemy Kiselev
Affiliation: 
University of Groningen
Date: 
Fri, 2018-12-07 10:00 - 16:30

Vorlesung "Topology of 4-Manifolds"

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Date: 
Tue, 2018-10-09 15:15 - 17:00
Location: 
MPIM Lecture Hall

Web talks in Bonn

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Organiser(s): 
Lukas Brantner
Date: 
Thu, 2018-05-24 16:15 - Fri, 2018-05-25 17:00

Introduction to Surgery

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Speaker: 
Wolfgang Lück
Affiliation: 
Universität Bonn
Date: 
Thu, 2018-04-19 13:15 - 15:00
Location: 
MPIM Lecture Hall

L^2-Betti numbers, I

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Speaker: 
Wolfgang Lück
Organiser(s): 
Wolfgang Lück (Universität Bonn), Peter Teichner (MPIM)
Date: 
Tue, 2018-04-24 15:15 - 17:00
Location: 
MPIM Lecture Hall

Vorlesung "Invariants of knots and 3-manifolds"

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Organiser(s): 
Wolfgang Lück (Universität Bonn), Peter Teichner (MPIM)
Date: 
Thu, 2018-04-12 13:00 - 15:00
Date: 
Thu, 2018-04-19 13:00 - 15:00
Date: 
Thu, 2018-04-26 13:00 - 15:00
Date: 
Thu, 2018-05-03 13:00 - 15:00
Date: 
Thu, 2018-05-10 13:00 - 15:00
Date: 
Thu, 2018-05-17 13:00 - 15:00
Date: 
Thu, 2018-05-24 13:00 - 15:00
Date: 
Thu, 2018-05-31 13:00 - 15:00
Date: 
Thu, 2018-06-07 13:00 - 15:00
Date: 
Thu, 2018-06-14 13:00 - 15:00
Date: 
Thu, 2018-06-21 13:00 - 15:00
Date: 
Thu, 2018-06-28 13:00 - 15:00
Date: 
Thu, 2018-07-05 13:00 - 15:00
Date: 
Thu, 2018-07-12 13:00 - 15:00
Date: 
Thu, 2018-07-19 13:00 - 15:00

https://basis.uni-bonn.de/qisserver/rds?state=verpublish&status=init&vmfile=no&publishid=139098&moduleCall=webInfo&publishConfFile=webInfo&publishSubDir=veranstaltung

V5D1 - Advanced Topics in Topology - Invariants of knots and 3-manifolds -

Mini-course: On the Hasse Principle for Divisibility in commutative algebraic groups

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Speaker: 
Laura Paladino
Affiliation: 
University of Calabria/MPIM
Date: 
Fri, 2018-04-13 10:15 - Fri, 2018-04-27 12:00
Location: 
MPIM Lecture Hall

The Hasse Priciple is a fundamental topic in number theory. Anyway a complete proof is very seldom showed in undergraduate and graduate courses in number theory. We will decribe this classical result and prove it. After an overview of some long-established local-global principles, we will focus on the recent local-global question for divisibility in commutative algebraic group.

Course on Frobenius Manifolds

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Date: 
Tue, 2017-05-02 10:15 - 12:00
Location: 
MPIM Seminar Room

Brauer Groups in Algebraic Topology III

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Speaker: 
Jacob Lurie
Affiliation: 
Harvard
Date: 
Fri, 2017-06-23 09:30 - 10:30
Location: 
MPIM Lecture Hall

Let $k$ be a field. The collection of (isomorphism classes of) central division algebras over $k$ can be organized into an abelian group $\mathrm{Br}(k)$, called the Brauer group of $k$. In this series of talks, I'll describe some joint work with Mike Hopkins on a variant of the Brauer group which arises in algebraic topology, controlling the classification of certain cohomology theories known as Morava $K$-theories.

Brauer Groups in Algebraic Topology II

Posted in
Speaker: 
Jacob Lurie
Affiliation: 
Harvard
Date: 
Thu, 2017-06-22 09:30 - 10:30
Location: 
MPIM Lecture Hall

Let $k$ be a field. The collection of (isomorphism classes of) central division algebras over $k$ can be organized into an abelian group $\mathrm{Br}(k)$, called the Brauer group of $k$. In this series of talks, I'll describe some joint work with Mike Hopkins on a variant of the Brauer group which arises in algebraic topology, controlling the classification of certain cohomology theories known as Morava $K$-theories.

Some applications of topology to physics III

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Speaker: 
Dan Freed
Date: 
Wed, 2017-06-21 09:30 - 10:30
Location: 
MPIM Lecture Hall

An axiom system for special quantum field theories was introduced over 25 years ago by Segal and Atiyah.
It has been much elaborated and developed, particularly in the topological case.  In these three lectures I will
discuss aspects of this mathematical theory and applications to problems in physics.

Some applications of topology to physics II

Posted in
Speaker: 
Dan Freed
Date: 
Tue, 2017-06-20 09:30 - 10:30
Location: 
MPIM Lecture Hall

An axiom system for special quantum field theories was introduced over 25 years ago by Segal and Atiyah.
It has been much elaborated and developed, particularly in the topological case.  In these three lectures I will
discuss aspects of this mathematical theory and applications to problems in physics.

Lecture on Anabelian Geometry

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Date: 
Fri, 2015-10-30 10:00 - Fri, 2016-02-26 12:00
Location: 
MPIM Lecture Hall

Characters of representations of Lie (super)algebras and (mock)theta functions

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Speaker: 
V. Kac
Date: 
Mon, 2015-03-23 09:00 - 10:15
Location: 
MPIM Lecture Hall

Prerequisits:
Understanding of the Weyl character formula, universal enveloping algebra and Verma modules.
Knowledge of some elements of Lie superalgebra theory.
Knowledge of some elements of Jacobi theta functions and modular forms.
Programm:
1. Lie superalgebras
2. Ane Lie (super)algebras: loop and KM constructions
3. Character formula for integrable and admissible representations in the Lie algebra case and Jacobi
theta functions
4. Character formula for tame integrable and admissible modules in the Lie superalgebra case and
mock theta functions

Modular-invariance in rational conformal field theory: past, present and future

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Speaker: 
G. Mason
Date: 
Thu, 2015-03-26 14:00 - 15:00
Location: 
MPIM Lecture Hall

This is a tentative outline of my two lectures. No prior knowledge of vertex
rings is assumed, though the foundations will be covered only sketchily due to
time constraints. The main purpose of the lectures is to explain how modularity
enters into VOA theory, and to discuss an approach to the general problem of
modular-invariance in rational CFT based on a theory of vector-valued modular
forms, Fuchsian systems, and the Riemann-Hilbert problem.
Optional background reading on VOAs:
U. Heidelberg, downloadable lecture notes on connections between VOAs and the

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