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arxiv: 1207.3569 · v1 · pith:JJRRFEQTnew · submitted 2012-07-16 · 🧮 math.DS

A horospherical ratio ergodic theorem for actions of free groups

classification 🧮 math.DS
keywords ergodicratiotheoremactionsfreegroupsalongamenable
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We prove a ratio ergodic theorem for amenable equivalence relations satisfying a strong form of the Besicovich covering property. We then use this result to study general non-singular actions of non-abelian free groups and establish a ratio ergodic theorem for averages along horospheres.

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