Title	Von Neumann equivalence and properly proximal groups
Creator	Ruth, Lauren
Publisher	Banff International Research Station for Mathematical Innovation and Discovery
Date Issued	2019-10-03T14:31
Description	We introduce a new equivalence relation on groups, which we call von Neumann equivalence, and which is coarser than both measure equivalence and W-equivalnce. We introduce a general procedure for inducing actions in this setting and use this to show that the class of properly proximal groups is closed in this equivalence relation. In particular, proper proximality is preserved under both measure equivalence and W-equivalence, and from this we obtain examples of non-inner amenable groups which are not properly proximal. This is based on joint work with Ishan Ishan and Jesse Peterson.
Extent	20.0 minutes
Subject	Mathematics; Functional analysis; Dynamical systems and ergodic theory
Type	Moving Image
File Format	video/mp4
Language	eng
Notes	Author affiliation: University of Vanderbilt
Series	BIRS Workshop Lecture Videos (Banff, Alta)
Date Available	2020-04-01
Provider	Vancouver : University of British Columbia Library
Rights	Attribution-NonCommercial-NoDerivatives 4.0 International
DOI	10.14288/1.0389704
URI	http://hdl.handle.net/2429/73873
Affiliation	Non UBC
Peer Review Status	Unreviewed
Scholarly Level	Postdoctoral
Rights URI	http://creativecommons.org/licenses/by-nc-nd/4.0/
Aggregated Source Repository	DSpace

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