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http://dx.doi.org/10.4134/BKMS.2012.49.4.863

ON LIGHTLIKE HYPERSURFACES OF A GRW SPACE-TIME  

Kang, Tae-Ho (Department of Mathematics University of Ulsan)
Publication Information
Bulletin of the Korean Mathematical Society / v.49, no.4, 2012 , pp. 863-874 More about this Journal
Abstract
We provide a study of lightlike hypersurfaces of a generalized Robertson-Walker (GRW) space-time. In particular, we investigate lightlike hypersurfaces with curvature invariance, parallel second fundamental forms, totally umbilical second fundamental forms, null sectional curvatures and null Ricci curvatures, respectively.
Keywords
lightlike hypersurface; spacelike slice; generalized Robertson-Walker space-times; curvature invariance; totally umbilical second fundamental form; null sectional curvature; null Ricci curvature;
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