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

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Showing 2020 · math.OAShow all

2 papers · 2 filters

math.OA2020

New examples of W $^{}$ and C $^{}$ -superrigid groups

Ionut Chifan, Alec Diaz-Arias, Daniel Drimbe

A group $G$ is called $W^{*}$ -superrigid (resp. $C^{*}$ -superrigid) if it is completely recognizable from its von Neumann algebra $L (G)$ (resp. reduced $C^{*}$ -algebra $C_{r}^{*} (G)$ ). Devel…

math.OA2020★ 1 cited

Examples of property (T) II $_{1}$ factors with trivial fundamental group

Ionut Chifan, Sayan Das, Cyril Houdayer +1

In this article we provide the first examples of property (T) $I I_{1}$ factors $N$ with trivial fundamental group, $F (N) = 1$ . Our examples arise as gro…

New examples of W∗ and C∗-superrigid groups

Examples of property (T) II1​ factors with trivial fundamental group

New examples of W $^{}$ and C $^{}$ -superrigid groups

Examples of property (T) II $_{1}$ factors with trivial fundamental group