On Pseudo-Umbilical Spacelike Submanifolds in Indefinite Space Form Mn+p p (c)
arXiv:1907.01931
Abstract
In the present note, first we derive an intrinsic inequality for Pseudo-umbilical spacelike submanifold in an indefinite space form. We use this inequality to show that such submanifold is totally geodesic. In the rest part of this paper, using a result of Aiyama [1], we prove that Pseudo-umbilical spacelike subamnifold is totally umbilical.