当前位置: ag平台网址 > 正文


【几何测度论讨论班】Maximal isotopies, transverse foliations and orbit forcing theory for surface homeomorphisms
ag平台网址:2019-03-13  浏览量:


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.

报告人概况:报告人 Patrice Le Calvez, 巴黎六大数学系教授,动力系统方向专家, 2006 ICM 45 分钟报告人。

邀请人: 梁湘玉

Copyright ©版权所有:ag平台网址 地址:北京市海淀区ag平台app下载路37号      邮编:100191

XML 地图 | Sitemap 地图