Şahin B.2024-08-042024-08-0420011300-0098https://hdl.handle.net/11616/91064In this paper, we investigate mixed QR-submanifolds in a quaternionic space form and pseudo umbilical QR-submanifold of a quaternionic space form under some additional condition. Finally we give a necessary condition for QR-submanifold of a quaternion Kaehler manifold such that dimv? = 1 to be a 3-quasi Sasakian Manifold. © TÜBİTAK.eninfo:eu-repo/semantics/closedAccessAlmost Contact 3-StructureMixed Geodesic QR-SubmanifoldPseudo-Umbilical SubmanifoldQR-SubmanifoldQuaternion Kaehler ManifoldArticle2534134252-s2.0-54749100468Q2