Results 11 to 20 of about 4,749,396 (175)

Einstein Like (Epsilon)-Para Sasakian Manifolds

open access: yes, 2013
Einstein like (epsilon)-para Sasakian manifolds are introduced. For an (epsilon)-para Sasakian manifold to be Einstein like, a necessary and sufficient condition in terms of its curvature tensor is obtained. The scalar curvature of an Einstein like (epsilon)-para Sasakian manifold is obtained and it is shown that the scalar curvature in this case must ...
Keles, Sadik   +3 more
openaire   +3 more sources

Manifold-like Matchbox Manifolds [PDF]

open access: yes, 2017
A matchbox manifold is a generalized lamination, which is a continuum whose arccomponents define the leaves of a foliation of the space. The main result of this paper implies that a matchbox manifold which is manifold-like must be homeomorphic to a weak ...
Olga Lukina (7780643)   +2 more
core   +8 more sources

Manifold-like matchbox manifolds

open access: yes, 2019
A matchbox manifold is a generalized lamination, which is a continuum whose arc-components define the leaves of a foliation of the space. The main result of this paper implies that a matchbox manifold which is manifold-like must be homeomorphic to a weak
Olga Lukina (7780643)   +2 more
core   +7 more sources

Einstein-like Poisson Warped Product Manifolds and Applications

open access: yesSymmetry
In this paper, we introduce the concept of contravariant Einstein-like Poisson manifolds of classes A, B, and P. We then prove that the fiber space of a Poisson warped product manifold inherits the contravariant Einstein-like classes of the total space, while the base space inherits these classes under certain conditions related to the warping function.
Foued Aloui
openaire   +3 more sources

Characterization on Mixed Generalized Quasi-Einstein Manifold [PDF]

open access: yes, 2016
summary:In the present paper we study characterizations of odd and even dimensional mixed generalized quasi-Einstein manifold. Next we prove that a mixed generalized quasi-Einstein manifold is a generalized quasi-Einstein manifold under a certain ...
BHATTACHARYYA, Arindam   +2 more
core   +1 more source

Solitonic Aspect of Relativistic Magneto-Fluid Spacetime with Some Specific Vector Fields

open access: yesMathematics, 2023
The target of the current research article is to investigate the solitonic attributes of relativistic magneto-fluid spacetime (MFST) if its metrics are Ricci–Yamabe soliton (RY-soliton) and gradient Ricci–Yamabe soliton (GRY-soliton).
Mohd Danish Siddiqi   +2 more
doaj   +1 more source

An Einstein-like metric on almost Кenmotsu manifolds

open access: yesFilomat, 2017
In this paper, we prove that if the metric of a three-dimensional (k,?)'-almost Kenmotsu manifold satisfies the Miao-Tam critical condition, then the manifold is locally isometric to the hyperbolic space H3(-1). Moreover, we prove that if the metric of an almost Kenmotsu manifold with conformal Reeb foliation satisfies the Miao-Tam critical
Wang, Yaning, Wang, Wenjie
openaire   +1 more source

η -Ricci soliton on η -Einstein-like LP-Sasakian manifolds

open access: yesAnnals of West University of Timisoara - Mathematics and Computer Science, 2022
Abstract The object of the present article is to study the notion of η -Einstein-like LP-Sasakian manifolds admitting η -Ricci soliton.
Das Susanta   +2 more
openaire   +2 more sources

Pinching Theorems for Statistical Submanifolds in Sasaki-Like Statistical Space Forms

open access: yesEntropy, 2018
In this paper, we obtain the upper bounds for the normalized δ -Casorati curvatures and generalized normalized δ -Casorati curvatures for statistical submanifolds in Sasaki-like statistical manifolds with constant curvature. Further,
Ali H. Alkhaldi   +3 more
doaj   +1 more source

There Are No Conformal Einstein Rescalings of Pseudo-Riemannian Einstein Spaces with n Complete Light-Like Geodesics

open access: yesMathematics, 2019
In the present paper, we study conformal mappings between a connected n-dimension pseudo-Riemannian Einstein manifolds. Let g be a pseudo-Riemannian Einstein metric of indefinite signature on a connected n-dimensional manifold M.
Josef Mikeš   +2 more
doaj   +1 more source

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