Local Birkhoff Conjecture for convex planar billiards

Speaker: Vadim Kaloshin (Austrian Institute of Science and Technology) 

Time: Wednesday, May 24, 2023, 15:00-18:00 

Location: Zoom 915 4821 3645, Password 202305

Abstract: The classical Birkhoff Conjecture states that an integrable billiard is an ellipse.  During the talk we shall discuss the local version of this conjecture and outline a perturbative technique of studying preservation of integrability. This is based on a joint work with A. Avila-J. De Simoi and A. Sorrentino.