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SUMMARY:Alcides Buss
DTSTART:20201002T120000Z
DTEND:20201002T133000Z
DTSTAMP:20260423T021107Z
UID:WSIPM/10
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/WSIPM/10/">A
 menability for actions of groups on C*-algebras</a>\nby Alcides Buss as pa
 rt of Western Sydney\, IPM joint workshop on Operator Algebras\n\n\nAbstra
 ct\nIn this lecture I will explain recent developments in the theory of am
 enability for actions of groups on C*-algebras and Fell bundles\, based on
  joint works with Siegfried Echterhoff\, Rufus Willett\, Fernando Abadie a
 nd Damián Ferraro. Our main results prove that essentially all known noti
 ons of amenability are equivalent. We also extend Matsumura’s theorem to
  actions of exact locally compact groups on commutative C*-algebras and gi
 ve a counter-example for the weak containment problem for actions on nonco
 mmutative C*-algebras.\n
LOCATION:https://researchseminars.org/talk/WSIPM/10/
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