3 papers
math.OA2026
Pureness and stable rank one for reduced twisted group -algebras of certain group extensions
Felipe Flores, Mario Klisse, MÃcheál à Cobhthaigh +1
The purpose of this note is to prove two results. First, we observe that discrete groups with property in the sense of Ozawa give rise to completely sel…
math.FA2025
Kesten's criterion for discrete probability measure-preserving groupoids
Soham Chakraborty, Milan Donvil, Felipe Flores +1
Inspired by Kesten's criterion for the amenability of groups, we establish a characterization of the amenability of discrete probability measure-preserving groupoids in terms of th…
math.FA2024
The Choquet-Deny Property for Groupoids
Tey Berendschot, Soham Chakraborty, Milan Donvil +2
A countable discrete group is called Choquet-Deny if for any non-degenerate probability measure on the group, the corresponding space of bounded harmonic functions is trivial. Buil…