Results 21 to 30 of about 2,959 (165)

Ricci Curvature for Warped Product Submanifolds of Sasakian Space Forms and Its Applications to Differential Equations

open access: yesJournal of Mathematics, 2021
In the present paper, we establish a Chen–Ricci inequality for a C-totally real warped product submanifold Mn of Sasakian space forms M2m+1ε. As Chen–Ricci inequality applications, we found the characterization of the base of the warped product Mn via ...
Fatemah Mofarreh   +3 more
doaj   +1 more source

On the biharmonicity of product maps

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We introduce the warped product of maps defined between Riemannian warped product spaces and we give necessary and sufficient conditions for warped product maps to be (bi)harmonic.
Leonard Todjihounde
doaj   +1 more source

Gradient Ricci–Yamabe Soliton on Twisted Product Manifolds

open access: yesJournal of Mathematics, 2022
In this paper, we study the twisted product manifolds with gradient Ricci–Yamabe solitons. Then, we classify and characterize the warped product and twisted product spaces with gradient Ricci–Yamabe solitons.
Byung Hak Kim   +3 more
doaj   +1 more source

Warped Product Submanifolds of LP-Sasakian Manifolds

open access: yesDiscrete Dynamics in Nature and Society, 2012
We study of warped product submanifolds, especially warped product hemi-slant submanifolds of LP-Sasakian manifolds. We obtain the results on the nonexistance or existence of warped product hemi-slant submanifolds and give some examples of LP-Sasakian ...
S. K. Hui   +3 more
doaj   +1 more source

Warped Product Submanifolds in Locally Golden Riemannian Manifolds with a Slant Factor

open access: yesMathematics, 2021
In the present paper, we study some properties of warped product pointwise semi-slant and hemi-slant submanifolds in Golden Riemannian manifolds, and we construct examples in Euclidean spaces.
Cristina E. Hretcanu, Adara M. Blaga
doaj   +1 more source

On quasi-Einstein warped products

open access: yesAnnals of the Alexandru Ioan Cuza University - Mathematics, 2012
We study quasi-Einstein warped product manifolds for arbitrary dimen- sion n 3. Mathematics Subject Classication 2010: 53C25.
Sular, Sibel, Özgür, Cihan
openaire   +3 more sources

Classification of Warped Product Submanifolds in Kenmotsu Space Forms Admitting Gradient Ricci Solitons

open access: yesMathematics, 2019
The purpose of this article is to obtain geometric conditions in terms of gradient Ricci curvature, both necessary and sufficient, for a warped product semi-slant in a Kenmotsu space form, to be either CR-warped product or simply a Riemannian product ...
Ali H. Alkhaldi, Akram Ali
doaj   +1 more source

On Douglas Warped Product Metrics

open access: yesResults in Mathematics, 2022
Corrections on Theorem 2 and ...
openaire   +2 more sources

The geometry of warped product singularities [PDF]

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2017
In this article, the degenerate warped products of singular semi-Riemannian manifolds are studied. They were used recently by the author to handle singularities occurring in General Relativity, in black holes and at the big-bang. One main result presented here is that a degenerate warped product of semi-regular semi-Riemannian manifolds with the ...
openaire   +2 more sources

Conformal Vector Fields on Doubly Warped Product Manifolds and Applications

open access: yesAdvances in Mathematical Physics, 2016
This article aimed to study and explore conformal vector fields on doubly warped product manifolds as well as on doubly warped spacetime. Then we derive sufficient conditions for matter and Ricci collineations on doubly warped product manifolds.
H. K. El-Sayied   +2 more
doaj   +1 more source

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