Degenerate invariant tori in quasi-periodically forced skew-product maps

发布时间：2022-04-02 作者：浏览次数：

Speaker:	司文	DateTime:	2022年4月5日（周二）下午4:00-5:00
Brief Introduction to Speaker: 司文，山东大学副教授		Place:	腾讯会议：201 189 991
Abstract: In this talk, we give some existence results of degenerate invariant tori in quasi-periodically forced skew-product maps. In one-dimensional case, we give the relation among perturbation, non-resonant condition and the order of main term to produce invariant tori. In two-dimensional case, we give the coexistence of hyperbolic tori and elliptic tori. And the numbers of invariant tori are also considered in our work.