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ON HORIZONTAL LIGHTLIKE HYPERSURFACES OF ROBERTSON-WALKER SPACETIMES
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 Title & Authors
ON HORIZONTAL LIGHTLIKE HYPERSURFACES OF ROBERTSON-WALKER SPACETIMES
Liu, Ximin; Pan, Quanxiang;
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 Abstract
In this paper, we investigate horizontal lightlike hypersurfaces 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.
 Keywords
lightlike hypersurface;Robertson-Walker spacetime;symmetry;parallelism;induced Ricci curvature tensor;
 Language
English
 Cited by
 References
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