题目  Entropy of physical measures for C^infty maps 
报告人：David  Burguet （Sorbonne University) 
时间  2019年1月23日 14：00-16：00
地点  维格堂 319
摘要  For a C^\infty map on a compact manifold we prove that for a Lebesgue randomly picked point x there is an empirical measure from x with entropy larger than or equal to the sum of positive Lyapunov exponents at x.