8 papers
Chen invariants for Riemannian submersions and their applications in meteorology
Mehmet Gulbahar, Semsi Eken Meric, Erol Kilic
In this paper, an optimal inequality involving the delta curvature is exposed. An application of Riemannian submersions dealing meteorology is presented. Some characterizations abo…
Lightlike hypersurfaces of an -para Sasakian manifold
Selcen Yüksel Perktaş, Erol Kılıç, Mukut Mani Tripathi
In this paper, we initiate the study of lightlike hypersurfaces of an -almost paracontact metric manifold which are tangent to the structure vector field. In particular, we gi…
Einstein like -para Sasakian manifolds
Sadik Keleş, Erol Kiliç, Mukut Mani Tripathi +1
Einstein like -para Sasakian manifolds are introduced. For an -para Sasakian manifold to be Einstein like, a necessary and sufficient condition in te…
Warped product submanifolds of Lorentzian paracosymplectic manifolds
Selcen Yüksel Perktaş, Erol Kılıç, Sadık Keleş
In this paper we study the warped product submanifolds of a Lorentzian paracosymplectic manifold and obtain some nonexistence results. We show that a warped product semi-invariant…
Slant and Semi-Slant Submanifolds of a Lorentzian Almost Paracontact Manifold
Selcen Yüksel Perktaş, Erol Kiliç, Sadik Keleş
In this paper we define and study the slant and semi-slant submanifolds of a Lorentzian almost paracontact manifold. Some necessary and sufficient conditions for a submanifold of a…
On -para Sasakian 3-manifolds
Selcen Yüksel Perktaş, Erol Kılıç, Mukut Mani Tripathi +1
In this paper we study the 3-dimensional -para Sasakian manifolds. We obtain an necessary and sufficient condition for an -para Sasakian 3 -manifol…