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math.GR2022
Charmenability and Stiffness of Arithmetic Groups
Uri Bader, Itamar Vigdorovich
We characterize charmenability among arithmetic groups and deduce dichotomy statements pertaining normal subgroups, characters, dynamics, representations and associated operator al…
math.GR2022
Characters of solvable groups, Hilbert-Schmidt stability and dense periodic measures
Arie Levit, Itamar Vigdorovich
We study the character theory of metabelian and polycyclic groups. It is used to investigate Hilbert-Schmidt stability via the character-theoretic criterion of Hadwin and Shulman.…