Kazan, SemaSahin, Bayram2024-08-042024-08-0420141300-00981303-6149https://doi.org/10.3906/mat-1311-19https://search.trdizin.gov.tr/yayin/detay/187272https://hdl.handle.net/11616/92424We study lightlike hypersurfaces of a semi-Riemannian manifold satisfying pseudosymmetry conditions. We give sufficient conditions for a lightlike hypersurface to be pseudosymmetric and show that there is a close relationship of the pseudosymmetry condition of a lightlike hypersurface and its integrable screen distribution. We obtain that a pseudosymmetric lightlike hypersurface is a semisymmetric lightlike hypersurface or totally geodesic under certain conditions. Moreover, we give an example of pseudosymmetric lightlike hypersurfaces and investigate pseudoparallel lightlike hypersurfaces. Furthermore, we introduce Ricci-pseudosymmetric lightlike hypersurfaces, obtain characterizations, and give an example for such hypersurfaces.eninfo:eu-repo/semantics/openAccessSemisymmetric lightlike hypersurfaceRicci-semisymmetric lightlike hypersurfacepseudosymmetric lightlike hypersurfacepseudoparallel lightlike hypersurfaceArticle3861050107010.3906/mat-1311-192-s2.0-84910627703Q2187272WOS:000347434700009Q4