References
- M. C. Chaki and R. K. Maity, On quasi-Einstein manifolds, Publ. Math. Debrecen 57, 2000, 297-306.
- B. Y. Chen and K. Yano, Hypersurfaces of a conformally at space, Tensor (N. S.) 26, 1972, 318-322.
- K. L. Duggal and A. Bejancu, Lightlike Submanifolds of Semi-Riemannian Manifolds and Applications, Kluwer Acad. Publishers, Dordrecht, 1996.
- K. L. Duggal and D. H. Jin, Null curves and Hypersurfaces of Semi-Riemannian Manifolds, World Scientic, 2007.
- K. L. Duggal and D. H. Jin, A classication of Einstein lightlike hypersurfaces of a Lorentzian space form, J. Geom. Phys., 60, 2010, 1881-1889. https://doi.org/10.1016/j.geomphys.2010.07.005
- D. H. Jin, Screen conformal Einstein lightlike hypersurfaces of a Lorentzian space form, Commun. Korean Math. Soc., 25(2), 2010, 225-234. https://doi.org/10.4134/CKMS.2010.25.2.225
- D. H. Jin, Lightlike hypersurfaces of a semi-Riemannian manifold of quasi-constant curvature, Commun. Korean Math. Soc., 25(2), 2010, 225-234. https://doi.org/10.4134/CKMS.2010.25.2.225
- D. N. Kupeli, Singular Semi-Riemannian Geometry, Mathematics and Its Applications, vol. 366, Kluwer Acad. Publishers, Dordrecht, 1996.