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Billiards in regular polygons
DOI:10.4171/lem/1099.png)
Abstract
En 中文
In this paper we study billiards in regular n-sided polygons and monodromy over Teichm & uuml;ller curves from an arithmetic perspective. Our main results show that the combinatorics of billiards in a periodic direction s is controlled by the projection of s to a finite projective line.This arithmetic control coexists, experimentally, with chaotic behavior that first emerges when n=12.
Keywords:
Billiards
Teichm & uuml
ller theory
cyclotomic fields
thin groups

