Giovanni Forni: On the ergodicity of billiards in non-rational polygons
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We will present a geometric criterion for the ergodicity of the billiard flow in a polygon with non-rational angles and discuss its application to the Diophantine case.
Recording during the thematic meeting: "Dynamics and geometry in the Teichmüller space" the July 07, 2015 at the Centre International de Rencontres Mathématiques (Marseille, France)
Filmmaker: Guillaume Hennenfent