Results 11 to 20 of about 71,844 (227)

$m$-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

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

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

Einstein manifolds with torsion and nonmetricity [PDF]

open access: yesPhysical Review D, 2020
27 pages, Accepted for publication in Phys.
Dietmar Klemm   +2 more
openaire   +4 more sources

On Generalized Recurrent and Generalized Concircularly Recurrent Weyl Manifolds

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2021
In the present work, generalized recurrent and generalized concircularly recurrent Weyl manifolds are examined. We define nearly quasi-Einstein Weyl manifolds and we proved that if a generalized recurrent or generalized concircularly recurrent Weyl ...
İlhan Gül
doaj   +1 more source

On the scalar curvature of Einstein manifolds [PDF]

open access: yesMathematical Research Letters, 1997
LaTeX.
Catanese, Fabrizio, LeBrun, Claude
openaire   +4 more sources

Wormholes in ACH Einstein manifolds [PDF]

open access: yesTransactions of the American Mathematical Society, 2008
We give a new construction of Einstein and Kaehler-Einstein manifolds which are asymptotically complex hyperbolic, inspired by the work of Mazzeo-Pacard in the real hyperbolic case. The idea is to develop a gluing theorem for 1-handle surgery at infinity, which generalizes the Klein construction for the complex hyperbolic metric.
Biquard, Olivier, Rollin, Yann
openaire   +5 more sources

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