Results 21 to 30 of about 1,731,356 (293)
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
openaire +2 more sources
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
doaj +1 more source
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
doaj +1 more source
Nonabelian Fields in Exact String Solutions [PDF]
, 1997 Within the framework of "anomalously gauged" Wess-Zumino-Witten (WZW) models, we construct solutions which include nonabelian fields. Both compact and noncompact groups are discussed.
Iofa, M. Z., Zayas, and L. A. Pando
core +3 more sources
Exact Solutions in Modified Gravity Models
Entropy, 2012 We review the exact solutions in modified gravity. It is one of the main problems of mathematical physics for the gravity theory. One can obtain an exact solution if the field equations reduce to a system of ordinary differential equations. In this paper
Valery V. Obukhov, Andrey N. Makarenko
doaj +1 more source
Exact multi-membrane solutions in AdS_7 [PDF]
, 2001 We study the properties of an exact multi-membrane solution in seven-dimensional maximal SO(5)-gauged supergravity. Unlike previously known multi-centered solutions, the present one is asymptotically anti-de Sitter.
Alonso-Alberca +31 more
core +4 more sources
Exact solutions in Chiral cosmology [PDF]
General Relativity and Gravitation, 2019 10 pages, no figures, title changed, version accepted for publication by Gen.
Andronikos Paliathanasis +2 more
openaire +3 more sources
Exact solutions for N-magnon scattering [PDF]
, 2008 Giant magnon solutions play an important role in various aspects of the AdS/CFT correspondence. We apply the dressing method to construct an explicit formula for scattering states of an arbitrary number N of magnons on R x S^3.
Kalousios, Chrysostomos +2 more
core +2 more sources
Exact Solutions for Nonclassical Stefan Problems
International Journal of Differential Equations, 2010 We consider one-phase nonclassical unidimensional Stefan problems for a source function F which depends on the heat flux, or the temperature on the fixed face x=0.
Adriana C. Briozzo, Domingo A. Tarzia
doaj +1 more source
Exact solutions for Weyl fermions with gravity [PDF]
, 2015 We consider the single-handed spinor field in interaction with its own gravitational field described by the set of field equations given by Weyl field equations written in terms of derivatives that are covariant with respect to the gravitational ...
Cianci, Roberto +2 more
core +3 more sources