activity
20082026
most citedStructural results for free Araki-Woods factors and their continuous cores

16 citations · 21 across the 5 of their papers we have counts for

collaborators

6 papers

math.OA2026

The classification of flows on factors and Connes' bicentralizer problem

Cyril Houdayer, Amine Marrakchi

We solve two long-standing open problems in von Neumann algebras. First, we classify all flows with full Connes spectrum on the hyperfinite factor up to cocycle con…

math.OA2026

Uniqueness of almost periodic outer flows on the hyperfinite type factor

Cyril Houdayer, Amine Marrakchi

We show that any almost periodic outer flow on the hyperfinite type factor with Connes' spectrum satisfies the…

math.OA2025

Weyl groups and rigidity of von Neumann algebras

Cyril Houdayer, Adrian Ioana

Let be a noncompact semisimple algebraic group with trivial center, a maximal split torus, the centralizer of in and an irreducible lattice. Cons…

math.DS2024

Strong primeness for equivalence relations arising from Zariski dense subgroups

Daniel Drimbe, Cyril Houdayer

We show that orbit equivalence relations arising from essentially free ergodic probability measure preserving actions of Zariski dense discrete subgroups of simple algebraic groups…

math.OA2023★ 5 cited

Asymptotic freeness in tracial ultraproducts

Cyril Houdayer, Adrian Ioana

We prove novel asymptotic freeness results in tracial ultraproduct von Neumann algebras. In particular, we show that whenever is a tracial free product von Neuma…

math.OA2008★ 16 cited

Structural results for free Araki-Woods factors and their continuous cores

Cyril Houdayer

We show that for any type free Araki-Woods factor associated with an orthogonal representation of on a separable real Hilbe…