在这份报纸,我们在 de 保姆空间 Snp+P (c)与经常的分级的弯曲 R c 学习完全的像空间的 submanifold Mn 并且获得一个拧的条件因为完全是脐的 ones.The 结果的 Mn 概括那在[ 5 ,主要定理]到更高的 codimension 并且为n=给补充 2 在那里。
In this paper, we study the complete space-like submanifold M^n with constant scalar curvature R ≤ c in the de Sitter space Sp^n+p(c) and obtain a pinching condition for M^n to be totally umbilical ones. The result generalizes that in [5, Main Theorem] to higher codimension and give a complement for n = 2 there.