摘要
设Ｍｎ为Ｎｎ＋ｐ的浸入子流形，本文讨论了Ｍｎ在Ｎｎ＋ｐ中全脐、伪脐、极小的若干充要条件。
Let M be an n-dimension submanifold of a (n+p) -dimension Riemannian manifoldNn+p.In this paper, the author discusses some sufficient and necessary conditions that Mn isthe umbilical submanifold of Nn+P or the psudo-umbilical submanifold of Nn+p,as well as theminimal submanifold.
出处
《长沙交通学院学报》
1994年第1期9-13,共5页
Journal of Changsha Communications University
关键词
全脐
伪脐
极小
unbilical submanifold
psudo-umbilical submanifold
minimal submanifold
