[Settfa] Tuesday 25/02, Vadim Alekseev

kubis at math.cas.cz kubis at math.cas.cz
Fri Feb 21 10:00:04 CET 2020


 Tuesday 25th February, 10:00am 

 Speaker:Vadim Alekseev, TU Dresden
 Title: Sofic approximations, coarse geometry and operator algebras


 Sofic and hyperlinear groups generalise both residually finite and amenable groups, and the concept of soficity (or, more generally, embeddability into ultraproducts of finitary objects in the theory you study) is central to many important results and conjectures in measured group theory and operator algebras. In this talk, I will define sofic and hyperlinear groups and explain the interconnections between these notions and various other approximation properties of groups, graphs ajn operator algebras.

 For more information see the seminar web page at 
 https://calendar.math.cas.cz/set-theory-and-analysis-actual .

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