On lightlike hypersurfaces of a GRW space-time
Bull. Korean Math. Soc. 2012 Vol. 49, No. 4, 863-874
Printed July 1, 2012
Tae Ho Kang
University of Ulsan
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
MSC numbers : 53C25, 53C25
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