Generalized Graph manifolds with non-positive curvature
主 题: Generalized Graph manifolds with non-positive curvature
报告人: 戎小春教授 (首都师范大学和美国Rutgers University)
时 间: 2013-05-31 14:00-15:00
地 点: 理科一号楼1114 （数学所活动）
A graph structure on a 3-manifold M consists of several disjoint embedded tori {T^2_i} such that each connected component of
M-\\bigcup_iT^2_i admits a circle (Seifert) fibration. We will discuss certain rigidity phenomena on the class of compact n-manifolds
with non-positive sectional curvature which admit generalized graph structures. This is an on-going program joint with
Jianguo Cao and Jeff Cheeger.
