题目： Some inverse problems of Birkhoff BilliardsPoints

报告人： 黄冠

(清华数学中心)

Abstract : In this talk, I will introduce two types of inverse problems of Birkhoff billiard systems. One is about the spectral rigidity of billiard tables.

I will present a result on how to recover the eigenvalues of the linearization of the Poincare return map on Aubry-Mather periodic

orbits from the marked length spectrum of generic Birkhoff billiard tables. The other is about the integrability of Birkhoff Billiards.

The famous Birkhoff conjecture claims that all the integrable billiard systems are those induced by ellipses.

I will review recent progresses in the study of Birkhoff conjecture. This talk is based on joint works with Vadim Kaloshin and Alfonso Sorrentino.

时间： 3月20日（周三）下午14:00-15:00地点：565net必赢客户端本部教二楼 711 教室

联系人：魏巧玲

欢迎全体师生积极参加！