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math.DS2023
Stabilizers for ergodic actions and invariant random expansions of non-archimedean Polish groups
Colin Jahel, Matthieu Joseph
Let be a closed permutation group on a countably infinite set , which acts transitively but not highly transitively. If is oligomorphic, has no algebraicity and weakly e…
math.DS2023★ 3 cited
Amenable wreath products with non almost finite actions of mean dimension zero
Matthieu Joseph
Almost finiteness was introduced in the seminal work of Kerr as an dynamical analogue of Z-stability in the Toms-Winter conjecture. In this article, we provide the first examples o…