Complete Riemannian Manifold with Curvature Bounded from Below
In this paper,we study a complete n-Riemannian manifold M whose curvature bounded from below.Let N be a compact totally geodesic submanifold of M.Then,for any m ∈ M,we can make use of the first variation formula and the second variation formula of distance to prove that d(m,N) is bounded.
sectional curvature minimal radial curvature Ricci curvature k th-Ricci curvature
Xue Qiong Xiao Xiaofeng
School of Science,Wuhan University of Technology,China School of Mechanical Engineering and Automation,Wuhan Textile University,China
国际会议
沈阳
英文
1225-1229
2012-09-07(万方平台首次上网日期,不代表论文的发表时间)