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Pseudo-Riemannian Lie groups admitting left-invariant conformal vector fields

open access: yesComptes Rendus. Mathématique, 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.
Zhang, Hui, Chen, Zhiqi
doaj   +1 more source

Lightlike reduction of the M5 brane

open access: yesJournal of High Energy Physics, 2023
We obtain a Lagrangian for a lightlike dimensional reduction of the nonabelian M5 brane theory in six dimension. We assume that the six-manifold has at least one conformal Killing spinor and two commuting lightlike Killing vector fields, and we perform ...
Andreas Gustavsson
doaj   +1 more source

Killing Vector Fields and Holonomy Algebras [PDF]

open access: yesProceedings of the American Mathematical Society, 1984
We prove that for each Killing vector field X X on a complete Riemannian manifold, whose orthogonal distribution is involutive, the ( 1 , 1 ) (1,1) skew-symmetric operator A X {A_X} associated to X X by
openaire   +3 more sources

New application of the Killing vector field formalism: modified periodic potential and two-level profiles of the axionic dark matter distribution

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
We consider the structure of halos of the axionic dark matter, which surround massive relativistic objects with static spherically symmetric gravitational field and monopole-type magneto-electric fields.
Alexander B. Balakin, Dmitry E. Groshev
doaj   +1 more source

A classification of Bianchi Type I solutions via conformal vector fields and energy conditions in modified teleparallel gravity

open access: yesResults in Physics, 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.
Shabeela Malik   +5 more
doaj   +1 more source

On completeness of orbits of Killing vector fields [PDF]

open access: yes, 1993
A Theorem is proved which reduces the problem of completeness of orbits of Killing vector fields in maximal globally hyperbolic, say vacuum, space--times to some properties of the orbits near the Cauchy surface. In particular it is shown that all Killing
Brill D   +15 more
core   +3 more sources

On related vector fields of capillary surfaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
In this paper, some necessary and sufficient conditions are given for the related vector fields of capillary surfaces to be Killing, conformal Killing, and homothetic conformal Killing vectors in the n-dimensional domain Ω, and a construction of ...
Afet K. Özok
doaj   +1 more source

Geometry of Ricci solitons admitting a new geometric vector field [PDF]

open access: yesAUT Journal of Mathematics and Computing
In the present paper, we introduce a new geometric vector field (it will be called semi-Killing field) on semi-Riemannaian manifolds. A complete classification of semi-Killing vector fields on 3-dimensional Walker manifolds will be derived.
Farzaneh Shamkhali   +2 more
doaj   +1 more source

Killing Vector Fields on Complete Riemannian Manifolds [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
We discuss Killing vector fields with finite global norms on complete Riemannian manifolds whose Ricci curvatures are nonpositive or negative.
openaire   +2 more sources

Killing Vector Fields in Three Dimensions: A Method to Solve Massive Gravity Field Equations [PDF]

open access: yes, 2010
Killing vector fields in three dimensions play important role in the construction of the related spacetime geometry. In this work we show that when a three dimensional geometry admits a Killing vector field then the Ricci tensor of the geometry is ...
Aliev A N   +24 more
core   +2 more sources

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