天元名家讲座 | Nonuniform hyperbolicity and strong positive recurrence
报 告 人: BUZZI Jerome (步杰荣)、 CNRS研究员
所在单位: Université Paris-Saclay
报告地点: 吉林大学前卫南区正新楼209
报告时间: 2026-03-22 09:30:00
报告简介:

The Anosov-Smale theory of uniform hyperbolicity provides guidance for the dynamics of many systems beyond those satisfying exactly its axioms. Hence it is a recurring theme in dynamics to find «non-uniformly hyperbolic settings» that are as general as possible, imply the classical consequences, and can be easily checked. I will report on such a new notion, called «strong positive recurrence (SPR)» and developed with Sylvain CROVISIER and Omri SARIG.

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主讲人简介:
Prof. BUZZI holds a 1995 PhD from Université Paris-Sud, has worked in Dijon, Marseilles, and is now a senior researcher in Orsay. He is a specialist in dynamics and studies smooth ergodic theory. His focus is on the interplay between entropy, smoothness,Lyapunov exponents and symbolic dynamics from the point of view of the thermodynamic formalism. He is an invited speaker at ICM 2026.