题目：Density and openness properties of non-uniformly hyperbolic diffeomorphisms

报告人：梁超（中央财经大学）

时间：2020年12月3日 14:00-15:00

摘要： In this talk I will introduce some results on the $C^r$-topological properties（especially，density and openness） of the subset of nonuniformly hyperbolic diffeomorphisms in a certain class of partially hyperbolic symplectic systems (or volume-preserving systems).

腾讯会议ID：508 637 064

题目：On the quasi-shadowing lemma

报告人：周云华（重庆大学）

时间：2020年12月3日 15:00-16:00

摘要：Shadowing lemma is a fundamental theorem in dynamical systems’ field. For differential dynamical systems, hyperbolicity implies shadowing and non-uniform hyperbolicity implies non-uniform shadowing. In this talk, we will talk about the quasi-shadowing lemmas for partially hyperbolic systems which include partially hyperbolic diffeomorphisms, flows and $\mathbb{Z}^d$-actions.

腾讯会议ID：508 637 064