On the regularity of invariant curves of twist maps of the annulus
报告题目(Title): On the regularity of invariant curves of twist maps of the annulus
报告人(Speaker):Bassam Fayad (巴黎七大)
地点(Place):后主楼1129
时间(Time):5月28日下午4:00-5:00
邀请人(Inviter):苏喜锋
报告摘要
We show that there exist C^1 twist maps of the annulus that have a minimal invariant curve that is not differentiable.
主讲人简介
Bassam Fayad教授师从国际动力系统大师Michael Herman教授,在KAM理论、极小系统、圆周同胚光滑化、cocycle、multiple mixing等领域非常活跃,其相关重要结果在《Annals of Mathematics》、《Inventiones mathematicae》等国际一流期刊上发表,2018年国际数学家大会邀请报告人,并与Artur Avila、Hakan Eliasson等有广泛的合作。