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In this talk we introduce the concept of properly proximal groups, following a recent work of Boutonnet, Ioana and Peterson. This is a wide class of countable groups which contains in particular non-elementary hyperbolic groups and lattices in non-compact semi-simple Lie groups. As an application, we provide rigidity results for compact actions of $SL_d(\mathbb R)$, for $d\ge 3.$

# Operator Algebra Seminars

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Fri., Sep. 21, 2018 1:30 p.m.
- Fri., Sep. 21, 2018 3:00 p.m.
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Location: Classroom Building (CL) 416
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**Speaker:** Daniel Drimbe, University of Regina

**Title:** Introduction to properly proximal groups

**Abstract:**