Warped Product Lightlike Submanifolds
Bayram Şahin · SARAJEVO JOURNAL OF MATHEMATICS · 2024
e study a new class of lightlike submanifolds $M$, called warped product lightlike submanifolds, of a semi-Riemann manifold. We show that the null geometry of $M$ reduces to the corresponding non-degenerate geometry of its semi-Riemann submanifold. 2000 Mathematics Subject Classification. 53C15, 53C40, 53C50