Sahin, BayramGunduzalp, Yilmaz2024-08-042024-08-0420101303-5010https://hdl.handle.net/11616/104209In this paper, we introduce the idea of a lightlike submersion from a semi-Riemannian manifold onto a lightlike manifold, and give some examples. Then we define O'Neill's tensors for such submersions and investigate their main properties. We show that the Schouten connection is not a metric connection in a lightlike submersion. We also investigate curvature properties of the manifolds and establish a relation between the null sectional curvatures of a semi-Riemannian manifold and a lightlike manifold.eninfo:eu-repo/semantics/closedAccessLightlike ManifoldSubmersionLightlike submersionArticle3914153WOS:000277172100006Q4