Thursday

22

August 2019

Agenda des Mathématiques

Tous les événements de la communauté mathématique française

Séminaire de géométrie, groupes et dynamiques - Unité de mathématiques pures et appliquées - UMPA/ENSL - Lyon - Sud-Est

Unité de mathématiques pures et appliquées - UMPA/ENSL - Lyon - Sud-Est

Tim de Laat:"On exotic group C*-algebras": **Annulé**


Start: Feb. 13, 2019, 2 p.m.
End: Feb. 13, 2019, 3 p.m.

Speaker:
Title: Tim de Laat:"On exotic group C*-algebras": **Annulé**
Abstract: <p>With a locally compact group, one can naturally associate two objects encoding important parts of its representation theory: the full and the reduced group C*-algebra. These algebras coincide if and only if the group is amenable. In general, there are many C*-algebras (called exotic group C*-algebras) which lie "between these two", and in recent years, such algebras have received an increased amount of attention, partly because of their relation with the Baum-Connes conjecture.<br /> I will give an introduction to this topic (without assuming any specific background in C*-algebras) and explain how one can, in many cases, construct exotic group C*-algebras from the unitary representation theory of a group.</p>
Loc. UMPA
Cat. Séminaires

ref: Séminaire de géométrie, groupes et dynamiques - Unité de mathématiques pures et appliquées - UMPA/ENSL - Lyon - Sud-Est