Zobrazeno 1 - 10
of 219
pro vyhledávání: '"conformal vector fields"'
Publikováno v:
Mathematics Interdisciplinary Research, Vol 9, Iss 1, Pp 45-76 (2024)
Ricci bi-conformal vector fields have find their place in geometry as well as in physical applications. In this paper, we consider the Siklos spacetimes and we determine all the Ricci bi-conformal vector fields on these spaces.
Externí odkaz:
https://doaj.org/article/090cc52e1fdf46ab9a5b8f501640c977
Publikováno v:
Sahand Communications in Mathematical Analysis, Vol 21, Iss 1, Pp 207-220 (2024)
The Randers metrics are popular metrics similar to the Riemannian metrics, frequently used in physical and geometric studies. The weak Einstein-Finsler metrics are a natural generalization of the Einstein-Finsler metrics. Our proof shows that if $(M,
Externí odkaz:
https://doaj.org/article/feb74f9cc9f24756a4890251d60cf618
Autor:
Suha B. Al-Shaikh
Publikováno v:
Symmetry, Vol 15, Iss 11, p 2088 (2023)
In this paper, we initiate the study of shape vector fields on the hypersurfaces of a Riemannian manifold. We use a shape vector field on a compact hypersurface of a Euclidean space to obtain a characterization of round spheres. We also find a condit
Externí odkaz:
https://doaj.org/article/0eda9b111acd4480a8d4ab2f8e5bfdcf
Publikováno v:
Results in Physics, Vol 46, Iss , Pp 106267- (2023)
The focus of this research is to investigate conformal vector fields (CVFs) of Bianchi type I space–times in modified teleparallel gravity (MTG). In order to determine such vector fields, we make a classification of said space–times. As a result,
Externí odkaz:
https://doaj.org/article/af3ffc96c99340ef9c7e66effb9544c0
Publikováno v:
Results in Physics, Vol 44, Iss , Pp 106143- (2023)
In this paper, we classify the metric of locally rotationally symmetric Bianchi type V spacetime through its symmetries, including Killing, homothetic and conformal vector fields. In order to find all possible Bianchi type V metrics possessing these
Externí odkaz:
https://doaj.org/article/4648acdf9a0849118e06bfc347cc43b4
Publikováno v:
AUT Journal of Mathematics and Computing, Vol 2, Iss 1, Pp 61-71 (2021)
The target of this paper is to study $N(k)$-contact metric manifolds with some types of conformal vector fields like $\phi$-holomorphic planar conformal vector fields and Ricci biconformal vector fields. We also characterize $N(k)$-contact metric man
Externí odkaz:
https://doaj.org/article/879d55a6279c43028e2959a3b311e162
Akademický článek
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Autor:
Zhang, Hui, Chen, Zhiqi
Publikováno v:
Comptes Rendus. Mathématique, Vol 358, Iss 2, Pp 143-149 (2020)
Let $G$ be a Lorentzian Lie group or a pseudo-Riemannian Lie group of type $(n-2,2)$. If $G$ admits a non-Killing left-invariant conformal vector field, then $G$ is solvable.
Externí odkaz:
https://doaj.org/article/6d040b65e9f74153bc3f8f1de271bcb6
Publikováno v:
Physical Sciences Forum, Vol 7, Iss 1, p 46 (2023)
In a recent paper, a new conformally flat metric was introduced, describing an expanding scalar field in a spherically symmetric geometry. The spacetime can be interpreted as a Schwarzschild-like model with an apparent horizon surrounding the curvatu
Externí odkaz:
https://doaj.org/article/79c070caf70a44c39ce642c0fa6da542
Akademický článek
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