10
Dez
2019
Prof. Dr. Rudolf vom Hofe (Universität Bielefeld): Grundvorstellungen - Basis für inhaltliches Denken
Kolloquium über Geschichte und Didaktik der Mathematik
10
Dez
2019
Yair Hartman (Ben Gurion University): Stationary C*-dynamical systems. Oberseminar C*-Algebren.
We introduce the notion of stationary actions in the context of C*-algebras, and prove a new characterization of C*-simplicity in terms of unique stationarity o...
10
Dez
2019
Mittagsseminar: Christoph Böhm (Münster): Zwei algebraische Probleme aus der Differentialgeometrie
11
Dez
2019
Prof. Dr. Peter Bella (TU Dortmund): Homogenization of elliptic equations // 12:30 Uhr
In this talk I will discuss two specific questions in the theory of homogenization. First I will talk about recent progress on qualitative homogenization of de...
11
Dez
2019
Oberseminar Riemann surfaces and topological recursion: Jörg Schürmann: Introduction to Riemann surfaces, part II
11
Dez
2019
Pascal Maillard, Toulouse: Branching random walks in heterogeneous environments (Oberseminar Mathematische Stochastik)
Branching random walks are systems of particles which branch and diffuse randomly. They arise in many different contexts such as population models, disordered systems in statistical physics or reaction-diffusion equations.
09
Dez
2019
George Raptis (Universität Regensburg): Bivariant theories, cobordism categories, A-theory, h-cobordisms. (Oberseminar Topologie)
I will discuss an approach to the Dwyer-Weiss-Williams index theorems for topological and for smooth manifold bundles, which is based on a formalism for bivaria...
12
Dez
2019
Javier de la Nuez (University of the Basque Country): Minimality results for automorphism groups of homogeneous structures
Any group G of permutations can be endowed with the so called standard topology, the group topology in which a system of neighbourhoods of the identity consis...