Results 61 to 70 of about 3,771,122 (391)
Anisotropic Mesh Adaptation for Finite Element Solution of Anisotropic Porous Medium Equation [PDF]
, 2017 Anisotropic Porous Medium Equation (APME) is developed as an extension of the Porous Medium Equation (PME) for anisotropic porous media. A special analytical solution is derived for APME for time-independent diffusion. Anisotropic mesh adaptation for linear finite element solution of APME is discussed and numerical results for two dimensional examples ...
arxiv +1 more source
Existence and regularity results for anisotropic parabolic equations with degenerate coercivity [PDF]
arXiv, 2023 This paper deals with a class of nonlinear anisotropic parabolic equations with degenerate coercivity. Using the anisotropic Gagliardo-Nirenberg-type inequality, we prove some existence and regularity results for the solutions under the framework of anisotropic Sobolev spaces, which generalize the previous results of [10,18,23].
arxiv
Magnetized Strange Quark Models in Lyra Theory
Journal of New Theory, 2023 In this study, the behavior of magnetized strange quark matter (MSQM) distribution in Lyra theory was investigated for homogeneous anisotropic Bianchi III, locally rotationally symmetric (LRS) Bianchi I, and Kantowski-Sachs universe models.
Kadır Özcan, Can Aktaş
doaj +1 more source
General PFG signal attenuation expressions for anisotropic anomalous diffusion by modified-Bloch equations [PDF]
Physica A 497 (2018) 86-100, 2017 Anomalous diffusion exists widely in polymer and biological systems. Pulsed-field gradient (PFG) anomalous diffusion is complicated, especially in the anisotropic case where limited research has been reported. An general PFG signal attenuation expression, including the finite gradient pulse (FGPW) effect for free general anisotropic fractional ...
arxiv +1 more source
Gravitational Collapse of Phantom Fluid in (2+1)-Dimensions
, 2010 This investigation is devoted to the solutions of Einstein's field equations for a circularly symmetric anisotropic fluid, with kinematic self-similarity of the first kind, in $(2+1)$-dimensional spacetimes. In the case where the radial pressure vanishes,
A. Wang +34 more
core +1 more source
Influence of Electric Charge and Modified Gravity on Density Irregularities [PDF]
, 2016 This work aims to identify some inhomogeneity factors for plane symmetric topology with anisotropic and dissipative fluid under the effects of both electromagnetic field as well as Palatini $f(R)$ gravity.
Bhatti, M. Zaeem Ul Haq, Yousaf, Z.
core +2 more sources
Nonlinear evolution equations for degenerate transverse waves in anisotropic elastic solids
, 2008 Transverse elastic waves behave differently in nonlinear isotropic and anisotropic media. Quadratically nonlinear coupling in the evolution equations for wave amplitudes is not possible in isotropic solids, but such a coupling may occur for certain ...
Andrew N. Norris +4 more
core +1 more source
The anisotropic averaged Euler equations
, 2000 The purpose of this paper is to derive the anisotropic averaged Euler equations and to study their geometric and analytic properties. These new equations involve the evolution of a mean velocity field and an advected symmetric tensor that captures the fluctuation effects.
Marsden, Jerrold E., Shkoller, Steve
openaire +4 more sources
Accelerating Cosmologies with an Anisotropic Equation of State [PDF]
The Astrophysical Journal, 2008 5 pages, 4 figures.
Tomi S. Koivisto, David F. Mota
openaire +3 more sources
Fluids, 2017 Kinetic equations for rapidly rotating flows are developed in this paper using multiple scales perturbation theory. The governing equations are an asymptotically reduced set of equations that are derived from the incompressible Navier-Stokes equations ...
Amrik Sen
doaj +1 more source