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Back to Boundaries in Billiards
Leonid Bunimovich, Yaofeng Su · 2022-03-02 · via math.PR updates on arXiv.org

We prove Poisson limit laws for open billiards where the holes are on the boundaries of billiard tables (rather than some abstract holes in the phase space of a billiard). Such holes are of the main interest for billiard systems, especially for applications. Sinai billiards with or without a finite horizon, diamond billiards, and semi-dispersing billiards, as well as focusing billiards with slow decay of correlations, are considered.

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