2 papers
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.OA2025
On Relative Biexactness of Amalgamated Free Product von Neumann Algebras
Kai Toyosawa, Zhiyuan Yang
Given weakly exact tracial von Neumann algebras with a common injective amalgam , we prove that the amalgamated free product is biexa…