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SUMMARY:Crossed-products by locally compact groups and intermediate subfac
 tors. - Arnaud Brothier (Università degli Studi di Roma Tor Vergata)
DTSTART:20170125T133000Z
DTEND:20170125T143000Z
UID:TALK70272@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:<span>I will present examples of an action of a totally discon
 nected group G on a factor Q such that intermediate subfactors between Q a
 nd the crossed-product correspond to closed subgroups of G. This extends p
 revious work of Choda and Izumi-Longo-Popa. I will discuss about the analy
 tical difference with the case of actions of discrete groups regarding the
  existence of conditional expectations or operator valued weights. Finally
  I will talk about intermediate subfactors in the context of actions of He
 cke pairs of groups. <i>This is a joint work with R&eacute\;mi Boutonnet.<
 /i></span>
LOCATION:Seminar Room 1\, Newton Institute
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