... geometry. Due to extensive use as a tool to understand theory of relativity, it becomes a topic of interest for mathematicians and physicists. 53C15 53C40 53C50 Metallic semi-Riemannian manifolds Warped product lightlike submanifolds Irrotational lightlike submanifolds © Gauree...

... manifolds 53C15 53C40 53C42 53B25 In [ 18 ], K. Kenmotsu studied one class of almost contact metric manifolds known as Kenmotsu manifolds. He proved that: 1.Locally a Kenmotsu manifold is a warped product I ×   f M of an interval I and a Kaehler manifold...

... to the original publication and authors. The full terms of this license may be seen at http://creativecommons.org/licences/by/4.0/legalcode Semi-slant product Pointwise slant submanifolds Cosymplectic space form Dirichlet energy Ricci soliton Ricci curvature 53C25 53C40 53C42 53D15...