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DTSTART:20230312T070000
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DTSTART:20221106T060000
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DTSTART;TZID=America/Toronto:20231026T163000
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URL:https://uwaterloo.ca/pure-mathematics/events/analysis-seminar-173
SUMMARY:Analysis Seminar
CLASS:PUBLIC
DESCRIPTION:ARTHUR TROUPEL\, UNIVERSITÉ PARIS CITÉ\n\n\"FREE WREATH PROD
 UCT QUANTUM GROUPS AS FUNDAMENTAL C*-ALGEBRAS OF\nGRAPHS\"\n\nThe free wre
 ath product of a compact quantum group by the quantum\npermutation group $
 S_N^+$ has been introduced by Bichon in order to\ngive a quantum counterpa
 rt of the classical wreath product. The\nrepresentation theory of such gro
 ups is well-known\, but some results\nabout their operator algebras were s
 till open\, for example stability\nof Haagerup property\, of $K$-amenabili
 ty or factoriality of the von\nNeumann algebra. I will present a joint wor
 k with Pierre Fima in which\nwe identify these algebras with the fundament
 al C*-algebras of certain\ngraphs of C*-algebras\, and we deduce these pro
 perties from these\nconstructions.\n\nThis seminar will be held both onlin
 e and in person:\n\n* Room: MC 5479\n * Zoom link:\nhttps://uwaterloo.zoom
 .us/j/94186354814?pwd=NGpLM3B4eWNZckd1aTROcmRreW96QT09
DTSTAMP:20260605T112732Z
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