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SUMMARY:Arthur Troupel (Université Paris Cité\, France)
DTSTART:20230214T150000Z
DTEND:20230214T160000Z
DTSTAMP:20260422T175349Z
UID:QGS/84
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/QGS/84/">Fre
 e wreath products as fundamental graph C*-algebras</a>\nby Arthur Troupel 
 (Université Paris Cité\, France) as part of Quantum Groups Seminar [QGS]
 \n\n\nAbstract\nThe free wreath product of a compact quantum group by the 
 quantum permutation group $S_N^+$ has been introduced by Bichon in order t
 o give a quantum counterpart of the classical wreath product. The represen
 tation theory of such groups is well-known\, but some results about their 
 operator algebras were still open\, for example Haagerup property\, K-amen
 ability or factoriality of the von Neumann algebra. I will present a joint
  work with Pierre Fima in which we identify these algebras with the fundam
 ental C*-algebras of certain graphs of C*-algebras\, and we deduce these p
 roperties from these constructions.\n
LOCATION:https://researchseminars.org/talk/QGS/84/
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