Ursula Hamenstādt

activity

20052026

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math.GR2023

$L^{p}$ -cohomology for groups of isometries of Hadamard spaces

Ursula Hamenstädt

We show that a discrete group $Γ$ which admits a non-elementary isometric action on a Hadamard manifold of bounded negative curvature admits an isometric action on an $L^{p}$ -space $…

math.GR2023

Actions of finitely generated groups on compact metric spaces

Ursula Hamenstädt

Let $Γ$ be a finitely generated group which admits an action by homeomorphisms on a compact metrizable space $X$ . We show that there is a metric on $X$ defining the original topolo…

Lp-cohomology for groups of isometries of Hadamard spaces

Actions of finitely generated groups on compact metric spaces

$L^{p}$ -cohomology for groups of isometries of Hadamard spaces