Results 11 to 20 of about 30,853 (255)

Killing Vector Fields in Generalized Conformal β-Change of Finsler Spaces [PDF]

open access: yesJournal of Mathematics, 2015
We consider a Finsler space equipped with a Generalized Conformal β-change of metric and study the Killing vector fields that correspond between the original Finsler space and the Finsler space equipped with Generalized Conformal β-change of metric.
Mallikarjun Yallappa Kumbar   +3 more
doaj   +2 more sources

Combining synthetic human odours and low-cost electrocuting grids to attract and kill outdoor-biting mosquitoes : field and semi-field evaluation of an improved mosquito landing box [PDF]

open access: yes, 2016
On-going malaria transmission is increasingly mediated by outdoor-biting vectors, especially where indoor insecticidal interventions such as long-lasting insecticide treated nets (LLINs) are widespread.
Moore, Sarah J.   +26 more
core   +1 more source

Killing spinors are killing vector fields in Riemannian supergeometry [PDF]

open access: yes, 1997
A supermanifold M is canonically associated to any pseudo Riemannian spin manifold (M_0,g_0). Extending the metric g_0 to a field g of bilinear forms g(p) on T_p M, p\in M_0, the pseudo Riemannian supergeometry of (M,g) is formulated as G-structure on M,
Devchand, C.   +8 more
core   +1 more source

Trajectories of Affine Control Systems and Geodesics of a Spacetime with a Causal Killing Vector Field [PDF]

open access: yes, 2023
We study the geodesic connectedness of a globally hyperbolic spacetime (M,g) admitting a complete smooth Cauchy hypersurface S and endowed with a complete causal Killing vector field K.
Erasmo Caponio, Rossella Bartolo
core   +1 more source

Analytical solutions of spherical structures with relativistic corrections

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
This paper analyzes the characteristic of a non-static sphere along with anisotropic fluid distribution in the background of modified $$f(\mathcal {G})$$ f ( G ) theory.
M. Z. Bhatti   +3 more
doaj   +1 more source

Sufficient conditions for periodicity of a Killing vector field [PDF]

open access: yes, 1973
Let X X be a complete Killing vector field on an n n -dimensional connected Riemannian manifold. Our main purpose is to show that if X X has as few as n n closed orbits which are ...
Walter C. Lynge
core   +1 more source

Complete Riemannian manifolds admitting a pair of Einstein-Weyl structures [PDF]

open access: yesMathematica Bohemica, 2016
We prove that a connected Riemannian manifold admitting a pair of non-trivial Einstein-Weyl structures $(g, \pmømega)$ with constant scalar curvature is either Einstein, or the dual field of $ømega$ is Killing.
Amalendu Ghosh
doaj   +1 more source

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 an 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 ...
Metin Gürses   +2 more
core   +1 more source

CCNV Space-Times as Potential Supergravity Solutions

open access: yesAdvances in Mathematical Physics, 2018
It is of interest to study supergravity solutions preserving a nonminimal fraction of supersymmetries. A necessary condition for supersymmetry to be preserved is that the space-time admits a Killing spinor and hence a null or time-like Killing vector ...
A. Coley, D. McNutt, N. Pelavas
doaj   +1 more source

Black holes in an expanding universe and supersymmetry

open access: yesPhysics Letters B, 2016
This paper analyzes the supersymmetric solutions to five and six-dimensional minimal (un)gauged supergravities for which the bilinear Killing vector constructed from the Killing spinor is null. We focus on the spacetimes which admit an additional SO(1,1)
Dietmar Klemm, Masato Nozawa
doaj   +1 more source

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