Random Grain Orientation and Probabilistic Schmid Factors for Multiaxial Stress States

Dozent: N. M.
Datum: 21.04.16

Boundary value problems and noncommutative geometry

Dozent: Dr. Karsten Bohlen
Datum: 28.04.16
Uhrzeit: 14:15 Uhr - 15:45 Uhr

Anmerkung: Der Vortrag findet im Rahmen des Oberseminars der Funktionalanalysis statt in Raum G.15.20.

Schätzung von äquivalenten Martingalmaßen für Märkte vom exponentiellen Lévy-Typ

Dozent: F. B.
Datum: 12.05.16

TBA

Dozent: TBA
Datum: 02.06.16

Ergodicity of an two dimensional affine factor model based on the alpha root process

Dozent: Jonas Kremer
Datum: 09.06.16

Deterministische Formulierung von Diffusionsproblem in Termen von Besetzungszahlen

Dozent: I. D.
Datum: 16.06.16

Paradoxical decompositions and Amenability

Dozent: Prof. Dr. Fernando Lledó (Universidad Carlos III Madrid and Insitituto de Ciencias Matemáticas (ICMAT), Madrid),
Datum: 23.06.16

Abstract: There is a classical mathematical theorem (based on the work by Banach and Tarski) that implies the following shocking statement: "An orange can be divided into finitely many pieces, these pieces can be moved and rearranged in such a way to yield two oranges of the same size as the original one." In 1929 J. von Neumann recognized that one of the reasons underlying the Banach-Tarski paradox is the fact that on the unit ball there is an action of a discrete subgroup of isometries that fails to have the property of amenability ("Mittelbarkeit" in German).

In this talk we will approach the concept of amenability and paradoxcial decompositions from very different perspectives: we will analyze metric, purely algebraic and operator algebraic aspects. In particular, we will define the class of Foelner C*-algebras in terms of a net of unital completely positive maps from the algebra to matrices that are asymptotically multiplicative in a weak sense.

Finally, we will present Roe C*-algebras associated to discrete metric spaces with bounded geometry as an example where all these approaches unify.

(Joint work with P Ara (UAB), K. Li and J. Wu (U. Münster)).

The Wilson-Polchinski renormalization group approach to trhe scaling limit of particle systems

Dozent: T. D.
Datum: 30.06.16


Ausgefallen.

A survey on unsupervised learning

Dozent: R. K.
Datum: 07.07.16

Shape Differentiability of Local Reliability Functionals

Dozent: L. B.
Datum: 14.07.16

Grundideen der geometrischen Gaskinetik mit Anwendung auf Permeations- und Absorptionseigenschaften vom porösen Medien

Dozent:I. D.
Datum: 21.07.16