Results 1 to 10 of about 1,908 (95)

Almost Ricci–Bourguignon Solitons on Doubly Warped Product Manifolds [PDF]

Universe, 2023
This study aims at examining the effects of an almost Ricci–Bourguignon soliton structure on the base and fiber factor manifolds of a doubly warped product manifold.
Sameh Shenawy, Nasser Bin Turki, Noha Syied, Carlo Mantica   +3 more
doaj   +6 more sources

Poisson Doubly Warped Product Manifolds

Mathematics, 2023
This article generalizes some geometric structures on warped product manifolds equipped with a Poisson structure to doubly warped products of pseudo-Riemannian manifolds equipped with a doubly warped Poisson structure.
Ibrahim Al-Dayel, Foued Aloui, Sharief Deshmukh   +2 more
doaj   +4 more sources

Investigating slant curves within Lorentzian doubly warped product manifolds. [PDF]

PLoS ONE
This study investigates the application of Robertson-Walker space in the analysis of slant curves. The study classifies all slant curves and calculates their curvature and torsion.
Ayman Elsharkawy, Hoda Elsayied, Abdelrhman Tawfiq, Fatimah Alghamdi   +3 more
doaj   +4 more sources

Contravariant Curvatures of Doubly Warped Product Poisson Manifolds

Mathematics
In this paper, we investigate the sectional contravariant curvature of a doubly warped product manifold ( fB×bF,g˜,Π=ΠB+ΠF) equipped with a product Poisson structure Π, using warping functions and sectional curvatures of its factor manifolds (B,g˜B,ΠB ...
Foued Aloui, Shyamal Kumar Hui, Ibrahim Al-Dayel   +2 more
doaj   +4 more sources

Levi-Civita Ricci-Flat Doubly Warped Product Hermitian Manifolds

Advances in Mathematical Physics, 2022
Let M1,g and M2,h be two Hermitian manifolds. The doubly warped product (abbreviated as DWP) Hermitian manifold of M1,g and M2,h is the product manifold M1×M2 endowed with the warped product Hermitian metric G=f22g+f12h, where f1 and f2 are positive ...
Qihui Ni, Yong He, Jinhua Yang, Hui Zhang   +3 more
doaj   +2 more sources

Killing and 2-Killing Vector Fields on Doubly Warped Products

Mathematics, 2023
We provide a condition for a 2-Killing vector field on a compact Riemannian manifold to be Killing and apply the result to doubly warped product manifolds.
Adara M. Blaga, Cihan Özgür
doaj   +3 more sources

Conformal vector fields on doubly warped product manifolds and applications [PDF]

Advances in Mathematical Physics, 2016
In this article, we present a complete study of two disjoint classes of conformal vector fields on doubly warped product manifolds as well as on doubly warped space-times.
El-Sayied, H. K., Shenawy, Sameh, Syied, Noha   +2 more
core   +6 more sources

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

Advances 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, Aliya Naaz Siddiqui, Kamran Ahmad, Akram Ali   +3 more
doaj   +3 more sources

A Note on Doubly Warped Product Contact CR-Submanifolds in trans-Sasakian Manifolds [PDF]

Acta Mathematica Hungarica, 2007
Warped product CR-submanifolds in Kaehlerian manifolds were intensively studied only since 2001 after the impulse given by B.Y. Chen. Immediately after, another line of research, similar to that concerning Sasakian geometry as the odd dimensional version
A. Gray, B. Y. Chen, B. Y. Chen, B. Ünal, D. E. Blair, I. Mihai, J. C. Marero, K. Arslan, K. Yano, M. -I. Munteanu, M. I. Munteanu   +10 more
core   +3 more sources

Doubly warped product manifolds: Investigations through the projective curvature tensor and relativistic applications

AIP Advances
This paper introduces a description of a doubly warped product manifold, taking into account certain conditions related to the projective curvature tensor.
Abdallah Abdelhameed Syied, Uday Chand De, Nasser Bin Turki, Rajesh Kumar   +3 more
doaj   +2 more sources