Preprint
Aug 2026
Hyperbolicity and obstructions to PL actions of the circle
We investigate acylindrically hyperbolic groups acting on the circle by piecewise linear homeomorphisms. We prove that a finitely generated acylindrically hyperbolic group acting faithfully by piecewise linear homeomorphisms of the circle is virtually free, is virtually a closed hyperbolic surface group, or virtually s...
Leonardo Dinamarca, Maximiliano Escayola, Sang-hyun Kim et al.
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