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Markov chains on hyperbolic-like groups and quasi-isometries

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arxiv 2111.09837 v2 pith:LEMLCCJM submitted 2021-11-18 math.GR math.PR

classification math.GRmath.PR
keywords groupshyperboliccertainchainsmarkovrandomwalksacting
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We propose the study of Markov chains on groups as a "quasi-isometry invariant" theory that encompasses random walks. In particular, we focus on certain classes of groups acting on hyperbolic spaces including (non-elementary) hyperbolic and relatively hyperbolic groups, acylindrically hyperbolic 3-manifold groups, as well as fundamental groups of certain graphs of groups with edge groups of subexponential growth. For those, we prove a linear progress result and various applications, and these lead to a Central Limit Theorem for random walks on groups quasi-isometric to the ones we consider.

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Cited by 1 Pith paper

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  1. Growth gaps and exponential genericity in acylindrically hyperbolic groups

    math.GR 2026-07 conditional novelty 8.0 of 10

    WPD elements are exponentially generic for every finite generating set of an acylindrically hyperbolic group, yielding growth tightness and cogrowth tightness.

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