题 目: Recurrence on abelian cover: Application to closed geodesics in manifolds of negative curvature
报告人:Albert Fathi (Georgia Institute of Technology, US)
摘 要:If h is a homeomorphism on a compact manifold which is chain-recurrent, we will try to understand when the lift of h to an abelian cover (i.e. the covering whose Galois group is the first homology group of the manifold) is also chain-recurrent. This is related to the proof by John Franks of the Poincaré-Birkhoff theorem. It has consequences on density of classes of closed geodesics in a manifold of negative curvature, and more generally on geodesic flows which are Anosov
时 间: 2018年6月18日(星期一)14:00–15:00
地 点: 蒙民伟楼1105
邀请人:程伟 老师