Results 11 to 20 of about 2,960 (265)

Some results on the geometry of warped product CR-submanifolds in quasi-Sasakian manifold

open access: yesCubo, 2022
The present paper deals with a study of warped product submanifolds of quasi-Sasakian manifolds and warped product CR-submanifolds of quasi-Sasakian manifolds.
Shamsur Rahman
doaj   +1 more source

Warped product space-times [PDF]

open access: yesClassical and Quantum Gravity, 2017
Abstract Many classical results in relativity theory concerning spherically symmetric space-times have easy generalizations to warped product space-times, with a two-dimensional Lorentzian base and arbitrary dimensional Riemannian fibers. We first give a systematic presentation of the main geometric constructions, with emphasis on the
Xinliang An, Willie Wai Yeung Wong
openaire   +2 more sources

Sequential Warped Products and Their Applications

open access: yesInternational Electronic Journal of Geometry, 2021
In this paper, we study the sequential warped product manifolds, which are the natural generalizations of singly warped products. Many spacetime models that characterize the universe and the solutions of Einstein's field equations are known to have this new structure.
Güler, Sinem, Güler, Sinem
openaire   +5 more sources

Geometry of Warped Product CR and Semi-Slant Submanifolds in Quasi-Para-Sasakian Manifolds

open access: yesInternational Journal of Analysis and Applications, 2022
In the present paper we study the existence or non-existence of warped product semi-slant submanifolds in quasi-para-Sasakian manifolds and prove that there are no proper warped product semi-slant submanifolds in a quasi-para-Sasakian manifold such that ...
Shamsur Rahman   +2 more
doaj   +1 more source

Semi-Conformally Flat Singly Warped Product Manifolds and Applications

open access: yesAxioms, 2023
This paper investigates singly warped product manifolds admitting semi-conformal curvature tensors. The form of the Riemann tensor and Ricci tensor of the base and fiber manifolds of a semi-conformally flat singly warped product manifold are provided. It
Samesh Shenawy   +4 more
doaj   +1 more source

A Study of Doubly Warped Product Immersions in a Nearly Trans-Sasakian Manifold with Slant Factor

open access: yesAdvances in Mathematical Physics, 2021
In this article, we discuss the de Rham cohomology class for bislant submanifolds in nearly trans-Sasakian manifolds. Moreover, we give a classification of warped product bislant submanifolds in nearly trans-Sasakian manifolds with some nontrivial ...
Ali H. Alkhaldi   +3 more
doaj   +1 more source

On Finsler warped product metrics with vanishing $E$-curvature [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2021
In this paper, we study Finsler warped product metric recently introduced by P. Marcal and Z. Shen and find characteristics differential equations for this metric to have vanishing $E$-curvature.
Ranadip Gangopadhyay   +2 more
doaj   +1 more source

Curvature of multiply warped products [PDF]

open access: yesJournal of Geometry and Physics, 2005
28 pages, corrected typos, to appear in Journal of Geometry and ...
Dobarro, Fernando, Ünal, Bülent
openaire   +2 more sources

A Study of Generalized Projective P−Curvature Tensor on Warped Product Manifolds

open access: yesJournal of Mathematics, 2021
The main aim of this study is to investigate the effects of the P−curvature flatness, P−divergence-free characteristic, and P−symmetry of a warped product manifold on its base and fiber (factor) manifolds.
Uday Chand De   +3 more
doaj   +1 more source

Warped Poisson brackets on warped products

open access: yesJournal of Geometric Mechanics, 2014
In this paper, we generalize the geometry of the product pseudo-Riemannian manifold equipped with the product Poisson structure (\cite{Nas2}) to the geometry of a warped product of pseudo-Riemannian manifolds equipped with a warped Poisson structure. We construct three bivector fields on a product manifold and show that each of them lead under certain ...
Amrane, Yacine Aït   +2 more
openaire   +2 more sources

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