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Indexed by:期刊论文

Date of Publication:2015-01-01

Journal:Communications of the Korean Mathematical Society

Included Journals:Scopus

Volume:30

Issue:2

Page Number:109-121

ISSN No.:12251763

Abstract:In this paper, we investigate horizontal lightlike hypersur-faces of Robertson-Walker spacetimes. Some results involving the unique existence of the screen distribution and the symmetry of the induced Ricci curvature tensor of horizontal lightlike hypersurfaces are presented. We also obtain some properties concerning the symmetry and the parallelism of the second fundamental forms of such lightlike hypersurfaces. ? 2015 Korean Mathematical Society.