I. Chifan

activity

20062026

most citedOn the structural theory of II_1 factors of negatively curved groups, II: Actions by product groups

55 citations · 354 across the 38 of their papers we have counts for

collaborators

Showing 2023Show all

3 papers · 1 filter

math.OA2023

Quasinormalizers in crossed products of von Neumann algebras

Jon Bannon, Jan Cameron, Ionut Chifan +3

We study the relationship between the dynamics of the action $α$ of a discrete group $G$ on a von Neumann algebra $M$ , and structural properties of the associated crossed product i…

math.OA2023

Wreath-like products of groups and their von Neumann algebras II: Outer automorphisms

I. Chifan, A. Ioana, D. Osin +1

Given a countable group $G$ , let $L (G)$ denote its von Neumann algebra. For a wide class of ICC groups with Kazhdan's property (T), we confirm a conjecture of V.F.R. Jones as…

math.OA2023

Rigidity for von Neumann algebras of graph product groups II. Superrigidity results

Ionut Chifan, Michael Davis, Daniel Drimbe

In \cite{CDD22} we investigated the structure of $*$ -isomorphisms between von Neumann algebras $L (Γ)$ associated with graph product groups $Γ$ of flower-shaped graphs and proper…