报告时间：2019年3月14日(星期四)下午14:00－15：00
报告人：Patrice Le Calvez (巴黎六大)
报告地点：主北楼
307
报告摘要：
If f is a homeomorphism of a surface that is isotopic to the identity, we can define the notion of maximal isotopies, transverse foliations and transverse trajectories. Recently we developped with Fabio Tal (Universidade de Sao Paulo) a forcing theory on the set of transverse trajectories of such a homeomorphism. In particular we obtain a simple criterium of existence of a topological horseshoe. Different applications can be deduced, in particular results related to rotation vectors and also structural results about homeomorphisms on the 2-sphere with no entropy.
报告人简介：报告人
Patrice Le Calvez,
巴黎六大数学系教授，动力系统方向专家，
2006
年
ICM 45
分钟报告人。
邀请人：
梁湘玉
