摘要
设M为deSitter空间Sn+11(c)中的完备类空超曲面,具有常平均曲率向量和常数量曲率以及非负Ricci曲率,则它与球空间、欧氏空间或者双曲柱面等距.
Let M be an n(n≥3)-dimensional complete spacelike hypersurface in de Sitter space, S~n+11(1)with constant mean curvature H and constant scalar curvature, it also has nonegative Ricci curvature, then it is isometric to a sphere or an euclidean space or a hyperbolic cylinder.
出处
《沈阳工业学院学报》
2004年第4期53-55,52,共4页
Journal of Shenyang Institute of Technology
基金
江苏省教育厅资助项目(04KGD110112)
