55 citations · 354 across the 38 of their papers we have counts for
Showing 2026 · math.OAShow all
3 papers · 2 filters
math.OA2026
Bi-exact Wreath-like Product Groups
Ionuţ Chifan, Zhiyuan Yang
In this short paper, we prove the bi-exactness of all wreath-like product groups , whenever is amenable, is bi-exact, and the actio…
math.OA2026
Relative Biexactness for Relative Hyperbolic Groups and Some Applications
Ionuţ Chifan, Kai Toyosawa, Zhiyuan Yang
In this paper, we confirm a conjecture of Ozawa and others asserting that every finitely generated, relatively hyperbolic, exact group is bi-exact (in the sense of Ozawa) relative…
math.OA2026
Amenable absorption in von Neumann algebras of hyperbolic groups
Juan Felipe Ariza Mejia, Ionut Chifan, Adriana Fernandez Quero +1
We prove that the von Neumann algebra $\cL(G)$ associated with any hyperbolic group satisfies the following \emph{amenable absorption property}: for any infinite maximal amenab…