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论文类型：期刊论文

发表时间：2015-01-01

发表刊物：Balkan Journal of Geometry and its Applications

收录刊物：Scopus

卷号：20

期号：1

页面范围：38-48

ISSN号：12242780

摘要：In this paper we study the uniqueness of complete noncompact spacelike hypersurfaces immersed in generalized Robertson-Walker (GRW) spacetimes. According to a suitable restriction on the higher order mean curvature and the norm of the gradient of the height function of the hypersurface, we obtain some rigidity theorems in GRW spacetimes. Besides, we establish nonparametric results on the entire vertical graph in such ambient spacetimes. ? Balkan Society of Geometers, Geometry Balkan Press 2015.