Benjamin Anderson-Sackaney

activity

20202026

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math.OA2024

$C^{*}$ -simplicity and boundary actions of discrete quantum groups

Benjamin Anderson-Sackaney, Roland Vergnioux

We introduce and investigate several quantum group dynamical notions for the purpose of studying $C^{*}$ -simplicity of discrete quantum groups via the theory of boundary actions. In…

math.DS2024

Entropies and Poisson boundaries of random walks on groups with rapid decay

Benjamin Anderson-Sackaney, Tim de Laat, Ebrahim Samei +1

Let $G$ be a countable group and $μ$ a probability measure on $G$ . We build a new framework to compute asymptotic quantities associated with the $μ$ -random walk on $G$ , using metho…

C∗-simplicity and boundary actions of discrete quantum groups

Entropies and Poisson boundaries of random walks on groups with rapid decay

$C^{*}$ -simplicity and boundary actions of discrete quantum groups