Results 261 to 270 of about 5,240 (289)

Conformal vector fields and σk-scalar curvatures

Pacific Journal of Mathematics, 2022
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Xu, Xingwang, Ye, Jian
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Zeros of conformal vector fields

Classical and Quantum Gravity, 1997
The authors study the behaviour of a conformal vector field \(X\) on a spacetime in the neighbourhood of a zero of \(X\).
Hall, G. S., Capocci, M. S., Beig, R.
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On $\phi$-skew symmetric conformal vector fields

Publicationes Mathematicae Debrecen, 2001
Summary: The notion of the \(J\)-skew symmetric vector field was introduced by \textit{I. Mihai, L. Nicolescu} and \textit{R. Rosca} [Port. Math. 54, 215-228 (1997; Zbl 0880.53029)]. In the present paper, we deal with \(\varphi\)-skew symmetric conformal vector fields on a Kenmotsu manifold \(M(\varphi,\Omega,\eta,\xi,g)\).
Naitza, Dorotea, Oiagă, Adela
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Essential conformal vector fields

Classical and Quantum Gravity, 1999
The author deduces the necessary and sufficient condition for a conformal Killing vector field on a pseudo-Riemannian manifold \((M,g)\) to be homothetic or even a Killing vector field with respect to a locally defined metric conformally related to \(g\).
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Gradient Ricci Solitons on Spacelike Hypersurfaces of Lorentzian Manifolds Admitting a Closed Conformal Timelike Vector Field

Mathematics
In this article, we investigate Ricci solitons occurring on spacelike hypersurfaces of Einstein Lorentzian manifolds. We give the necessary and sufficient conditions for a spacelike hypersurface of a Lorentzian manifold, equipped with a closed conformal ...
Mohammed Guediri
exaly   +2 more sources

Conformal Vector Fields and Conformal–Type Collineations in Space-Times

General Relativity and Gravitation, 2000
This article discusses the existence of homothetic and conformal vector fields in spacetimes with a Killing symmetry. The study of Weyl invariants along the integral curves of the conformal vector fields leads to restrictions for the existence of such fields. A non-existence theorem for proper conformal fields in spacetimes of certain Petrov classes is
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A note on $$\varphi $$ φ -analytic conformal vector fields

Analysis and Mathematical Physics, 2017
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Deshmukh, Sharief, Bin Turki, Nasser
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Conformal Vector Fields and Eigenvectors of Laplacian Operator

Mathematical Physics, Analysis and Geometry, 2012
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On geometry of conformal vector fields

Итоги науки и техники Серия «Современная математика и ее приложения Тематические обзоры», 2022
Abdigappar Yakubovich Narmanov, O.Y. Qasimov, Eldor Odilbekovich Rajabov   +2 more
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Conformal vector fields of a class of Finsler spaces

Periodica Mathematica Hungarica
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