Orbit equivalence rigidity of irreducible actions of right-angled Artin groups
Camille Horbez (Orsay)
Abstract:
A central goal in measured group theory is to classify free, ergodic, measure-preserving actions of countable groups on probability spaces up to orbit equivalence: that is, up to the existence of a measure space isomorphism sending orbits to orbits. Rigidity occurs when orbit equivalence of two actions forces them to be conjugate through a group isomorphism. In this talk, I will present orbit equivalence rigidity phenomena for actions of (centerless, one-ended) right-angled Artin groups, upon imposing that every standard generator acts ergodically on the space.
This is joint work with Jingyin Huang.
algebraic topologydifferential geometrydynamical systemsgroup theorygeometric topologysymplectic geometry
Audience: researchers in the topic
Series comments: You can also find up-to-date information on the seminar homepage - warwick.ac.uk/fac/sci/maths/research/events/seminars/areas/geomtop/
The talks start five minutes after the hour. Talks are typically 55 minutes long, including time for questions.
Organizers: | Saul Schleimer*, Robert Kropholler* |
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