3 papers
math.GR2026
Stationary boundaries on the space of amenable subgroups and C*-simplicity
Anna Cascioli, Martín Gilabert Vio, Eduardo Silva
We give a sufficient condition for a countable group to possess a probability measure that admits a non-trivial -boundary modeled in the space $\mathrm{Sub}_{\mathrm{am}…
math.DS2025
The Poisson boundary of Thompson's group is not the circle
Martín Gilabert Vio, Cosmas Kravaris, Eduardo Silva
Let be a nondegenerate probability measure with finite entropy on a countable group of orientation-preserving homeomorphisms of the circle acting…
math.GR2024
Probabilistic Tits alternative for circle diffeomorphisms
Martín Gilabert Vio
Let be probability measures on satisfying a suitable moment condition and such that their supports genererate discrete groups acting proximally…