Results 11 to 20 of about 1,736,727 (289)
Exact cosmological solutions for MOG [PDF]
, 2015 We find some new exact cosmological solutions for the covariant scalar-tensor-vector gravity theory, the so-called MOdified Gravity (MOG). The exact solution of the vacuum field equations has been derived.
Roshan, Mahmood
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Exact anyon black hole solutions
European Physical Journal C: Particles and Fields, 2018 We present the exact anyon solutions and study their energy conditions. It is shown that the exact anyon VdW solutions with $$b>0$$ b>0 are physically un-acceptable.
Wei Xu
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Exact solutions of charged wormhole [PDF]
, 2001 In this paper, the backreaction to the traversable Lorentzian wormhole spacetime by the scalar field or electric charge is considered to find the exact solutions.
A. Agnese +10 more
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Quasi-Hyperbolically Symmetric γ-Metric
Entropy, 2023 We carry out a systematic study on the motion of test particles in the region inner to the naked singularity of a quasi-hyperbolically symmetric γ-metric. The geodesic equations are written and analyzed in detail. The obtained results are contrasted with
Luis Herrera +3 more
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Anisotropic Stars: Exact Solutions [PDF]
General Relativity and Gravitation, 2002 We study the effects of anisotropic pressure on the properties of spherically symmetric, gravitationally bound objects. We consider the full general relativistic treatment of this problem and obtain exact solutions for various form of equations of state connecting the radial and tangential pressures.
Dev, Krsna, Gleiser, Marcelo
openaire +3 more sources
Spherically Symmetric C3 Matching in General Relativity
Universe, 2023 We study the problem of matching interior and exterior solutions to Einstein’s equations along a particular hypersurface. We present the main aspects of the C3 matching approach that involve third-order derivatives of the corresponding metric tensors in ...
Hernando Quevedo
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Anisotropic chiral cosmology: Exact solutions [PDF]
International Journal of Modern Physics D, 2021 In this work, we investigate the anisotropic Bianchi type I cosmological model in the chiral set-up in a twofold manner. Firstly, we consider a quintessence plus a [Formula: see text]-essence-like model, where two scalar fields but only one potential term is considered.
Díaz-Barrón, Luis Rey +3 more
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Asymmetric inflation: Exact solutions [PDF]
Physical Review D, 2006 We provide exact solutions to the Einstein equations when the Universe contains vacuum energy plus a uniform arrangements of magnetic fields, strings, or domain walls. Such a universe has planar symmetry, i. e., it is homogeneous but, not isotropic. Further exact solutions are obtained when dust is included and approximate solutions are found for $w ...
Buniy, Roman V. +2 more
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Physics Letters B, 2021 We show, in detail, that the only non-trivial black hole (BH) solutions for a neutral as well as a charged spherically symmetric space-times, using the class F(R)=R±F1(R), must-have metric potentials in the form h(r)=12−2Mr and h(r)=12−2Mr+q2r2.
G.G.L. Nashed
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Exact solutions of (0,2) Landau-Ginzburg models
Journal of High Energy Physics, 2020 In this paper we study the low energy physics of Landau-Ginzburg models with N $$ \mathcal{N} $$ = (0, 2) supersymmetry. We exhibit a number of classes of relatively simple LG models where the conformal field theory at the low energy fixed point can be ...
Abhijit Gadde, Pavel Putrov
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