题目: Embedddedness and convexity for hypersurfaces in hyperbolic space. 

报告人:庆杰教授，加州大学SANTA CRUZ大学数学系 

时间:2017年4月20日上午10:30到11:30 

地点:管研楼1418 

摘要: I will talk about our recent works on convex hypersurfaces in hyperbolic space.I will show that the end at boundary of the infinity of an embedded hypersurface with positive Ricci curvature has one or two points. We will also show that an immersed hypersurface with nonnegative sectional curvature has to be embedded. 

欢迎广大师生参加!