We study the geometry of lightlike submanifolds of a semi-Riemannian manifold of quasiconstant curvature subject to the following conditions: (1) the curvature vector field ζ of is tangent to , (2) the screen distribution of is totally geodesic in , and (3) the coscreen distribution of is a conformal Killing distribution.
D. H. Jin. J. W. Lee. "Lightlike Submanifolds of a Semi-Riemannian Manifold of Quasi-Constant Curvature." J. Appl. Math. 2012 1 - 18, 2012. https://doi.org/10.1155/2012/636782