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math.GR2021
Effective discreteness radius of stabilisers for stationary actions
Tsachik Gelander, Arie Levit, Gregory Margulis
We prove an effective variant of the Kazhdan-Margulis theorem generalized to stationary actions of semisimple groups over local fields: the probability that the stabilizer of a ran…
math.GR2021★ 1 cited
Virtually free groups are stable in permutations
Nir Lazarovich, Arie Levit
We prove that finitely generated virtually free groups are stable in permutations. As an application, we show that almost-periodic almost-automorphisms of labelled graphs are close…