Results 21 to 30 of about 243,543 (330)
Raychaudhuri equation in an anisotropic universe with anisotropic sources [PDF]
6 pages, 10 ...
openaire +2 more sources
Thermal Effect on Elastic Waves of Anisotropic Saturated Porous Solid
The motion equations of anisotropic media, coupled to the mass conservation and thermoequilibrium equations of fluid, are studied here based on the standard space of physical presentation for thermoelastic dynamics of anisotropic saturated porous solids.
S. H. Guo
doaj +1 more source
Gravitational decoupled anisotropies in compact stars
Simple generic extensions of isotropic Durgapal–Fuloria stars to the anisotropic domain are presented. These anisotropic solutions are obtained by guided minimal deformations over the isotropic system.
Luciano Gabbanelli +2 more
doaj +1 more source
Large-scale cosmological perturbations on the brane [PDF]
In brane-world cosmologies of Randall-Sundrum type, we show that evolution of large-scale curvature perturbations may be determined on the brane, without solving the bulk perturbation equations.
A. Lukas +38 more
core +3 more sources
A Liouville type theorem for a class of anisotropic equations
In this paper we are dealing with entire solutions of a general class of anisotropic equations. Under some appropriate conditions on the data, we show that the corresponding equations cannot have non-trivial positive solutions bounded from above.
Barbu Luminiţa, Enache Cristian
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Propagation of electromagnetic waves in anisotropic magnetoelectric medium
In the article we consider porpagation and interaction of electromagnetic waves of different polarization, in anisotropic medium that is inhomogeneous along the Z axis with magnetoelectric effect of tetragonal, trigonal, and hexagonal symmetries are ...
S.K. Tleukenov +2 more
doaj +1 more source
This paper is concerned with a general class of quasilinear anisotropic equations. We first derive some maximum principles for two appropriate P-functions, in the sense of Payne (see the book of Sperb [18]).
Barbu Luminita, Enache Cristian
doaj +1 more source
Minimal Geometric Deformation: the inverse problem
In this paper we show that any static and spherically symmetric anisotropic solution of the Einstein field equations can be thought as a system sourced by certain deformed isotropic system in the context of Minimal Geometric Deformation-decoupling ...
Ernesto Contreras
doaj +1 more source
Reflectionless anisotropic multilayers for both polarisations at grazing incidence
We find a method for designing anisotropic multilayer profiles that are reflectionless at grazing incidence, for both electromagnetic polarisations.
Patient Dean A., Horsley Simon A.R.
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Compact anisotropic models in general relativity by gravitational decoupling
Durgapal’s fifth isotropic solution describing spherically symmetric and static matter distribution is extended to an anisotropic scenario. To do so we employ the gravitational decoupling through the minimal geometric deformation scheme.
E. Morales, Francisco Tello-Ortiz
doaj +1 more source

