Séminaires : Séminaire d'Algèbres d'Opérateurs

Equipe(s) : ao,
Responsables :Pierre Fima, François Le Maître, Romain Tessera
Email des responsables :
Salle : 1013
Adresse :Sophie Germain

Orateur(s) Jonas Wahl - KU Leuven,
Titre Free wreath product quantum groups and standard invariants of subfactors
Horaire14:00 à 15:00
RésumeI will demonstrate that the free product construction for subfactors due to Bisch and Jones and its formulation for planar algebras can be used to give a systematic description of the free wreath product operation for compact quantum groups. In order to do, I will recall Jones's notion of graph planar algebra and I will show that any subfactor planar subalgebra of the graph planar algebra of a graph with one even vertex arises as the fixed point algebra of an action of a compact quantum group on the algebra of loops of length 2 on the graph. In addition, an application to (central) approximation properties of free wreath products is given. This is joint work with Pierre Tarrago.
AdresseSophie Germain