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56:53
publiée le 25 septembre 2025
Strongly ergodic equivalence relations and full factors
De Amine Marrakchi
Free IET-Actions
Apparaît dans la collection : 2024 - T2 - WS1 - Low dimensional actions
Hölder's theorem states that a group acting freely by circle homeomorphisms is isomorphic and semi-conjugate to a subgroup of rotations. In this talk, I will discuss an analogous result, obtained with Nancy Guelman, for groups of interval exchange transformations.
