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Showing 1 to 2 of 2 for “"Acylindrically hyperbolic"”.
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Structure of Intermediate C*-subalgebras of discrete group actions
… including any non-faithful action of a hyperbolic group with trivial amenable radical, every intermediate $C^*$-sub-algebra $\mathcal{B}$, $C_{\lambda}^*(\Gamma)\subseteq\mathcal{B}\subseteq\mathcal{A}\rtimes_r\Gamma$, is a crossed product. On the von Neumann algebraic side, we show that …
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Uniform exponential growth of non-positively curved groups
… to show that certain subgroups of isometries of hyperbolic 3-space are free and remains one of very few tools that certify when a pair of group elements generate a free subgroup or semigroup. Quantitatively applying the ping-pong lemma to more general group actions on metric spaces requires a …