S. Vaes

activity

19982025

most citedErgodic coactions with large multiplicity and monoidal equivalence of quantum groups

83 citations · 651 across the 74 of their papers we have counts for

collaborators

Showing 2015Show all

4 papers · 1 filter

math.OA2015

A class of II_1 factors with exactly two group measure space decompositions

Anna Sofie Krogager, Stefaan Vaes

We construct the first II_1 factors having exactly two group measure space decompositions up to unitary conjugacy. Also, for every positive integer $n$ , we construct a II_1 factor…

math.OA2015★ 17 cited

Strong solidity of free Araki-Woods factors

Rémi Boutonnet, Cyril Houdayer, Stefaan Vaes

We show that Shlyakhtenko's free Araki-Woods factors are strongly solid, meaning that for any diffuse amenable von Neumann subalgebra that is the range of a normal conditional expe…

math.OA2015

Cohomology and $L^{2}$ -Betti numbers for subfactors and quasi-regular inclusions

Sorin Popa, Dimitri Shlyakhtenko, Stefaan Vaes

We introduce $L^{2}$ -Betti numbers, as well as a general homology and cohomology theory for the standard invariants of subfactors, through the associated quasi-regular symmetric enve…

math.OA2015

On the optimal paving over MASAs in von Neumann algebras

Sorin Popa, Stefaan Vaes

We prove that if $A$ is a singular MASA in a II $_{1}$ factor $M$ and $ω$ is a free ultrafilter, then for any $x \in M ⊖ A$ , with $∥ x ∥ \leq 1$ , and any $n \geq 2$ , there exists a…

A class of II_1 factors with exactly two group measure space decompositions

Strong solidity of free Araki-Woods factors

Cohomology and L2-Betti numbers for subfactors and quasi-regular inclusions

On the optimal paving over MASAs in von Neumann algebras

Cohomology and $L^{2}$ -Betti numbers for subfactors and quasi-regular inclusions