|Pierre Fima, François Le Maître, Romain Tessera
|Email des responsables :
|Arthur Troupel - IMJ-PRG,
|Free wreath products as fundamental graph C*-algebras - REPORTÉ
|14:00 à 15:00
The free wreath product of a compact quantum group by the quantum permutation group S_N^+ has been introduced by Bichon in order to give a quantum counterpart of the classical wreath product. The representation theory of such groups is well-known, but some results about their operator algebras were still open, for example Haagerup property, K-amenability or factoriality of the von Neumann algebra. I will present a joint work with Pierre Fima in which we identify these algebras with the fundamental C*-algebras of certain graphs of C*-algebras, and we deduce these properties from these constructions.
En raison de la grève, cet exposé est reporté à une date ultérieure.