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Department of Mathematics,
University of California San Diego

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Math 211B - Group Actions Seminar

Konrad Wrobel

McGill University

Orbit equivalence and wreath products

Abstract:

We prove various antirigidity and rigidity results around the orbit equivalence of wreath product actions. Let $F$ be a nonabelian free group. In particular, we show that the wreath products $A \wr F$ and $B \wr F$ are orbit equivalent for any pair of nontrivial amenable groups $A$, $B$. This is joint work with Robin Tucker-Drob.

Host: Brandon Seward

October 13, 2022

10:00 AM

Zoom ID 967 4109 3409
(email an organizer for the password)

Research Areas

Ergodic Theory and Dynamical Systems

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