I am a post-doctoral researcher at the École Normale Supérieure in Paris with Cyril Houdayer. I obtained my PhD at the Department of Mathematics at KU Leuven under supervision of Stefaan Vaes.
Email: milan[dot]donvil[at]ens[dot]psl[dot]eu
My research is mainly focussed on the study of von Neumann algebras associated to groups, group actions on probability spaces, or more generally groupoids. In particular, I am interested in rigidity phenomena.
In the autumn of 2026, we are organising the Operator algebras: approximation, rigidity, and dynamics trimester program at the IHP. Registration is possible here.
In my free time, I enjoy playing and listening to music (some songs I like).
Photo by Julien Campet
Kesten's criterion for discrete probability measure-preserving groupoids, with Soham Chakraborty, Felipe Flores, and Mario Klisse. Preprint 2025 - pdf
The Choquet-Deny Property for Groupoids, with Tey Berendschot, Soham Chakraborty, Se-Jin Kim, and Mario Klisse. Preprint 2024 - pdf
June 17, 2026 - W*-superrigidity for compact quantum groups - Invited talk at the Groups and Operator Algebras workshop at SwissMap, Les Diablerets