Results 11 to 20 of about 77 (59)

Conharmonic Curvature Tensor on -Contact Metric Manifolds [PDF]

open access: yesInternational Scholarly Research Notices, Volume 2011, Issue 1, 2011., 2011
The object of the present paper is to characterize -contact metric manifolds satisfying certain curvature conditions on the conharmonic curvature tensor. In this paper we study conharmonically symmetric, -conharmonically flat, and -conharmonically flat -
Sujit Ghosh, U. C. De, A. Taleshian
core   +2 more sources

D A -Homothetic Deformation of K-Contact Manifolds [PDF]

open access: yesInternational Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
We study Da-homothetic deformations of K-contact manifolds. We prove that Da-homothetically deformed K-contact manifold is a generalized Sasakian space form if it is conharmonically flat.
Premalatha, C.R., Nagaraja, H.G.
core   +2 more sources

LP‐Kenmotsu Manifolds Admitting η‐Ricci Solitons and Spacetime

open access: yesJournal of Mathematics, Volume 2022, Issue 1, 2022., 2022
In the present paper, LP‐Kenmotsu manifolds admitting η‐Ricci solitons have been studied. Moreover, some results for η‐Ricci solitons in LP‐Kenmotsu manifolds in the spacetime of general relativity have also been proved. Through a nontrivial example, we have given a proof for the existence of η‐Ricci solitons in a 5‐dimensional LP‐Kenmotsu manifold.
Yanlin Li   +3 more
wiley   +1 more source

Imperfect Fluid Generalized Robertson Walker Spacetime Admitting Ricci‐Yamabe Metric

open access: yesAdvances in Mathematical Physics, Volume 2021, Issue 1, 2021., 2021
In the present paper, we investigate the nature of Ricci‐Yamabe soliton on an imperfect fluid generalized Robertson‐Walker spacetime with a torse‐forming vector field ξ. Furthermore, if the potential vector field ξ of the Ricci‐Yamabe soliton is of the gradient type, the Laplace‐Poisson equation is derived.
Ali H. Alkhaldi   +4 more
wiley   +1 more source

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

open access: yesJournal of Mathematics, Volume 2021, Issue 1, 2021., 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. It is proved that the base and the fiber manifolds of the P−curvature flat warped manifold are Einstein manifold.
Uday Chand De   +4 more
wiley   +1 more source

ON CONHARMONIC CURVATURE TENSOR OF SASAKIAN FINSLER STRUCTURES ON TANGENT BUNDLES [PDF]

open access: yes, 2018
WOS: 000439232800026The content of this paper is made up of conharmonic curvature tensor K of Sasakian Finsler structures on tangent bundles. In this manner, quasi-conharmonically flat,xi-conharmonically flat, phi-conharmonically flat Sasakian Finsler ...
Özbir, Nesrin Çalışkan
core   +1 more source

A class of Lorentzian α-Sasakian manifolds [PDF]

open access: yes, 2009
In this study we consider φ-conformally flat, φ-conharmonically flat, φ-projectively flat and φ-concircularly flat Lorentzian α-Sasakian manifolds.
Murathan, Cengizhan, Turan M., Yildiz A.
core   +1 more source

Anisotropic Bianchi Type-V Model and the Conharmonically Flatness

open access: yesJournal of the Tensor Society, 2007
The study of Conharmonic curvature tensor is well known in the differential geometry and general relativity. The present study deals with spatially homogeneous and anisotropic Bianchi type-V universe with Conharmonically flatness when the source of gravitation is the viscous fluid.
S K Srivastava, Rajesh Kumar
openaire   +1 more source

共調和平坦なファイバーリーマン空間 [PDF]

open access: yes, 2006
We prove that a conharmonically flat fibred Riemannian space with totally geodesic fibre is locally the product manifold of two spaces of constant curvature with constant scalar curvatures K and -K ...
Agaoka, Yoshio   +2 more
core   +1 more source

f-Kenmotsu manifolds with the Schouten-van Kampen connection [PDF]

open access: yes, 2017
We study 3-dimensional f-Kenmotsu manifolds with the Schouten-van Kampen connection. With the help of such a connection, we study projectively flat, conharmonically flat, Ricci semisymmetric and semisymmetric 3-dimensional f-Kenmotsu manifolds ...
Ahmet Yıldız
core   +1 more source

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