BENJANCU, A., FERRANDEZ, A., and LUCAS, P.: A new viewpoint on geometry of a lightlike hypersurface in semi-Euclidean space
Saitama Mathematical Journal 1998(Vol. 16) pp.31-38
We first show that the geometries of a hypersurface seen either as a lightlike
hypersurface or as a Riemannian one are closed related.
Furthermore, the Bernstein theorem for lightlike hypersurface is proved.
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1991 Mathematics Subject Classification: 53C40, 53C50