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SUMMARY:Aidan Sims
DTSTART:20200930T103000Z
DTEND:20200930T120000Z
DTSTAMP:20260423T035613Z
UID:WSIPM/24
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WSIPM/24/">R
 econstruction of groupoids\, and classification of Fell algebras</a>\nby A
 idan Sims as part of Western Sydney\, IPM joint workshop on Operator Algeb
 ras\n\n\nAbstract\nI will the history of reconstruction of groupoids from 
 pairs of operator algebras\, from Feldman and Moore’s results on von Neu
 mann algebras through Kumjian’s and then Renault’s results about C*-al
 gebras of twists\, and including some recent results about groupoids that 
 are not topologically principal. I will finish by outlining how Kumjian’
 s theory leads to a Dixmier-Douady classification theorem for Fell algebra
 s.\n
LOCATION:https://researchseminars.org/talk/WSIPM/24/
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