We prove that the natural invariant surface associated with the billiard game on an irrational polygonal table is homeomorphic to the Loch Ness monster, that is, the only orientable infinite genus topological real surface with exactly one end.
机构:
Univ Paris Sud 11, Fac Sci Orsay, Dept Math, Batiment 425, F-91405 Orsay, FranceUniv Paris Sud 11, Fac Sci Orsay, Dept Math, Batiment 425, F-91405 Orsay, France
Sabogal, Alba Malaga
Troubetzkoy, Serge
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Aix Marseille Univ, Cent Marseille, CNRS, I2M,UMR 7373, F-13453 Marseille, FranceUniv Paris Sud 11, Fac Sci Orsay, Dept Math, Batiment 425, F-91405 Orsay, France