Results 41 to 50 of about 31,650 (302)

Certain Curvature Conditions on Kenmotsu Manifolds and 🟉-η-Ricci Solitons

open access: yesAxioms, 2023
The present paper deals with the investigations of a Kenmotsu manifold satisfying certain curvature conditions endowed with 🟉-η-Ricci solitons. First we find some necessary conditions for such a manifold to be φ-Einstein. Then, we study the notion of 🟉-η-
Halil İbrahim Yoldaş   +2 more
doaj   +1 more source

On a (k,mu)-paracontact manifold satisfying some conditions on the projective curvature tensor

open access: yesGulf Journal of Mathematics, 2021
In the present paper, we study the curvature tensors of (k,mu)-paracontact manifold satisfying the conditions P(ξ ,Y)Z=0, P(ξ ,Y)P=0, P(ξ ,Y)S =0 and (ξ,Y)R=0. According these cases, (k,μ)-paracontact manifolds have been characterized.
Pakize Uygun, M. Atc̣eken
semanticscholar   +1 more source

Lifts of a Quarter-Symmetric Metric Connection from a Sasakian Manifold to Its Tangent Bundle

open access: yesMathematics, 2022
The objective of this paper is to explore the complete lifts of a quarter-symmetric metric connection from a Sasakian manifold to its tangent bundle.
Mohammad Nazrul Islam Khan   +2 more
doaj   +1 more source

Affine projection tensor geometry: Decomposing the curvature tensor when the connection is arbitrary and the projection is tilted [PDF]

open access: yesJournal of Mathematical Physics, 1994
This paper constructs the geometrically natural objects which are associated with any projection tensor field on a manifold with any affine connection. The approaches to projection tensor fields which have been used in general relativity and related theories assume normal projection tensors of codimension one and connections which are metric compatible
openaire   +2 more sources

Deszcz Pseudo Symmetry Type LP-Sasakian Manifolds

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2016
Recently the present authors introduced the notion of generalized quasi-conformal curvature tensor which bridges Conformal curvature tensor, Concircular curvature tensor, Projective curvature tensor and Conharmonic curvature tensor.
Baishya Kanak Kanti   +1 more
doaj   +1 more source

Geometric inequivalence of metric and Palatini formulations of General Relativity

open access: yesPhysics Letters B, 2020
Projective invariance is a symmetry of the Palatini version of General Relativity which is not present in the metric formulation. The fact that the Riemann tensor changes nontrivially under projective transformations implies that, unlike in the usual ...
Cecilia Bejarano   +4 more
doaj   +1 more source

On the M-Projective Curvature Tensor of -Contact Metric Manifolds [PDF]

open access: yesISRN Geometry, 2013
The object of the present paper is to study some curvature conditions on -contact metric manifolds.
R. N. Singh, Shravan K. Pandey
openaire   +1 more source

Geometric analysis of the pseudo-projective curvature tensor in doubly and twisted warped product manifolds

open access: yesAIMS Mathematics
This study investigates the pseudo-projective curvature tensor within the framework of doubly and twisted warped product manifolds. It offers significant insights into the interaction between the pseudo-projective curvature tensor and both the base and ...
A. Elsharkawy   +3 more
semanticscholar   +1 more source

Impact of pseudo-projective curvature tensor on sequential doubly warped product manifolds with physical applications

open access: yesThe European Physical Journal Plus
This paper investigates the geometric and physical properties of the pseudo-projective curvature tensor in the context of Sequential Doubly Warped Product Manifolds (SDWPM).
A. Elsharkawy, U. De
semanticscholar   +1 more source

On the application of M-projective curvature tensor in general relativity

open access: yes, 2021
In this paper the application of the $M$-projective curvature tensor in the general theory of relativity has been studied. Firstly, we have proved that an $M$-projectively flat quasi-Einstein spacetime is of a special class with respect to an associated symmetric tensor field, followed by the theorem that a spacetime with vanishing $M$-projective ...
Chattopadhyay, Kaushik   +2 more
openaire   +2 more sources

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