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Groups And Dynamics
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Konrad Wrobel, zoom: Cost of inner amenable equivalence relations
Thursday, January 28, 2021, 12:30pm - 01:30pm
Cost is a $[1.\infty]$-valued measure-isomorphism invariant of aperiodic measured equivalence relations defined by Gilbert Levitt and heavily studied by Damien Gaboriau. For a large class of equivalence relations, including amenable, the cost is 1. Yoshikata Kida and Robin Tucker-Drob recently defined the notion of an inner amenable equivalence relation as an analog of inner amenability in the setting of groups. We show inner amenable equivalence relations also have cost 1. This is joint work with Robin Tucker-Trob. To get the Zoom link, sign up here: https://sites.cns.utexas.edu/utgd/utgd-online-seminar
Location: zoom

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