Results 1 to 10 of about 75,856 (179)

Charged and Electromagnetic Fields from Relativistic Quantum Geometry [PDF]

open access: yesUniverse, 2016
In the recently introduced Relativistic Quantum Geometry (RQG) formalism, the possibility was explored that the variation of the tensor metric can be done in a Weylian integrable manifold using a geometric displacement, from a Riemannian to a Weylian ...
Marcos R. A. Arcodía, Mauricio Bellini
doaj   +5 more sources

On geometry of sub-Riemannian η-Einstein manifolds

open access: greenДифференциальная геометрия многообразий фигур, 2019
On a sub-Riemannian manifold of contact type a connection with torsion is considered, called in the work a Ψ-connection. A Ψ-connection is a particular case of an N-connection.
S. Galaev
doaj   +2 more sources

$m$-quasi-$*$-Einstein contact metric manifolds

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The goal of this article is to introduce and study the characterstics of $m$-quasi-$*$-Einstein metric on contact Riemannian manifolds. First, we prove that if a Sasakian manifold admits a gradient $m$-quasi-$*$-Einstein metric, then $M$ is $\eta ...
H.A. Kumara, V. Venkatesha, D.M. Naik
doaj   +1 more source

A Kenmotsu metric as a conformal $\eta$-Einstein soliton

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
The object of the present paper is to study some properties of Kenmotsu manifold whose metric is conformal $\eta$-Einstein soliton. We have studied certain properties of Kenmotsu manifold admitting conformal $\eta$-Einstein soliton.
S. Roy, S. Dey, A. Bhattacharyya
doaj   +1 more source

∗-Ricci Tensor on α-Cosymplectic Manifolds

open access: yesAdvances in Mathematical Physics, 2022
In this paper, we study α-cosymplectic manifold M admitting ∗-Ricci tensor. First, it is shown that a ∗-Ricci semisymmetric manifold M is ∗-Ricci flat and a ϕ-conformally flat manifold M is an η-Einstein manifold. Furthermore, the ∗-Weyl curvature tensor
M. R. Amruthalakshmi   +3 more
doaj   +1 more source

ρ-Einstein Solitons on Warped Product Manifolds and Applications

open access: yesJournal of Mathematics, 2022
The purpose of this research is to investigate how a ρ-Einstein soliton structure on a warped product manifold affects its base and fiber factor manifolds. Firstly, the pertinent properties of ρ-Einstein solitons are provided.
Nasser Bin Turki   +4 more
doaj   +1 more source

(k,μ)-Paracontact Manifolds and Their Curvature Classification

open access: yesCumhuriyet Science Journal, 2022
The aim of this paper is to study (k,μ)-Paracontact metric manifold. We introduce the curvature tensors of a (k,μ)-paracontact metric manifold satisfying the conditions R⋅P_*=0, R⋅L=0, R⋅W_1=0, R⋅W_0=0 and R⋅M=0.
Pakize Uygun
doaj   +1 more source

On Bochner Flat Kähler B-Manifolds

open access: yesAxioms, 2023
We obtain on a Kähler B-manifold (i.e., a Kähler manifold with a Norden metric) some corresponding results from the Kählerian and para-Kählerian context concerning the Bochner curvature. We prove that such a manifold is of constant totally real sectional
Cornelia-Livia Bejan   +2 more
doaj   +1 more source

ON CONFORMAL AND QUASI-CONFORMAL CURVATURE TENSORS OF AN N(κ)-QUASI EINSTEIN MANIFOLD [PDF]

open access: bronzeCommunications of the Korean Mathematical Society, 2012
A. A. Hosseinzadeh, Abolfazl Taleshian
exaly   +2 more sources

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

Home - About - Disclaimer - Privacy