55 citations · 354 across the 38 of their papers we have counts for
5 papers · 1 filter
Rigidity for von Neumann algebras of graph product groups. I. Structure of automorphisms
Ionut Chifan, Michael Davis, Daniel Drimbe
In this paper we study various rigidity aspects of the von Neumann algebra where is a graph product group \cite{Gr90} whose underlying graph is a certain cycle of clique…
An exotic II factor without property Gamma
Ionut Chifan, Adrian Ioana, Srivatsav Kunnawalkam Elayavalli
We introduce a new iterative amalgamated free product construction of II factors, and use it to construct a separable II factor which does not have property Gamma and is no…
Tensor product indecomposability results for existentially closed factors
Ionut Chifan, Daniel Drimbe, Adrian Ioana
In the first part of the paper we survey several results from Popa's deformation/rigidity theory on the classification of tensor product decompositions of large natural classes of…
Invariant subalgebras of von Neumann algebras arising from negatively curved groups
Ionut Chifan, Sayan Das, Bin Sun
Using an interplay between geometric methods in group theory and soft von Neuman algebraic techniques we prove that for any icc, acylindrically hyperbolic group its von Neumann…
Embedding universality for II factors with property (T)
Ionut Chifan, Daniel Drimbe, Adrian Ioana
We prove that every separable tracial von Neumann algebra embeds into a II factor with property (T) which can be taken to have trivial outer automorphism and fundamental groups…