Results 261 to 270 of about 1,410,787 (301)

Parallel Multigrid for Anisotropic Elliptic Equations

Journal of Parallel and Distributed Computing, 2001
Interesting investigations for anisotropy by the cofficients of partial differential equations and by mesh anisotropy, for multigrid with a) alternating plane smoothers combined with standard coarsening and b) plane smoothers with semicoarsening algorithm.
Manuel Prieto 0001, R. Santiago, David Espadas, Ignacio Martín Llorente, Francisco Tirado   +4 more
openaire   +2 more sources

The anisotropic migrator's equation

International Meeting for Applied Geoscience & Energy, 1989
Consider a scalar travel t,ime field, constructed by assigning to each point in space, the time at which a wave front passes. The gradient of this scalar field is called the s[ownesa. It has the units of reciprocal velocity and the direction of most rapid increase in the travel time field. Phase velocity is defined as the reciprocal of slowness.
N. F. Uren, G. H. F. Gardner, J. A. McDonald   +2 more
openaire   +1 more source

A Regularized Equation for Anisotropic Motion-by-Curvature

SIAM Journal on Applied Mathematics, 1992
For realistic interfacial energies, the equations of anisotropic motion-by-curvature exhibit backward-parabolic behavior over portions of their domain, thereby inducing phenomena such as the formation of facets and wrinkles. In this paper, a physically consistent regularized equation that may be used to analyze such phenomena is derived.
DI CARLO, Antonio, GURTIN M. E., PODIO GUIDUGLI P.   +2 more
openaire   +3 more sources

Anisotropic Parabolic Equations with Measure Data

Journal of Partial Differential Equations, 2001
In this paper, we prove the existence of solutions to anisotropic parabolic equations with right hand side term in the bounded Radon measure M(Q) and the initial condition in M(Ω) or in L^m space (with m “small”).
Li, Fengquan, Zhao, Huixiu
openaire   +2 more sources

Anisotropic constitutive equations and schur's lemma

International Journal of Engineering Science, 1978
Abstract The symmetry properties of a material impose restrictions on the form of the constitutive expressions employed to describe the response of the material. We employ the methods of group representation theory and Schur's lemma to obtain the general form of the constitutive expression which is consistent with the restrictions imposed by material
Smith, G. F., Kiral, E.
openaire   +1 more source

Eikonal Equation for Anisotropic Media

Journal of Mathematical Sciences, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Anisotropic Burgers equation with an anisotropic perturbation

Communications in Nonlinear Science and Numerical Simulation, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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An Integral-Equation Formulation for Anisotropic Elastostatics

Journal of Applied Mechanics, 1996
In this paper a conceptually simple integral-equation formulation for homogeneous anisotropic linear elastostatics is presented. The basic idea of the approach proposed here is to rewrite the system of differential equations of the anisotropic problem to enable the use of the isotropic fundamental solution.
Perez, M. M., Wrobel, L. C.
openaire   +2 more sources

Bubbling solutions to an anisotropic Hénon equation

2015
In this paper we consider the problem $$\displaystyle{ \qquad \left \{\begin{array}{ll} -\mathrm{div}(a(x)\nabla u) = c_{\alpha }a(x)\vert x -\xi \vert ^{\alpha }u^{p_{\alpha }\pm \varepsilon }&\mbox{ in }\varOmega, \\ u > 0 &\mbox{ in }\varOmega, \\ u = 0 &\mbox{ on }\partial \varOmega,\end{array} \right.
Faya, Jorge, GROSSI, Massimo, PISTOIA, Angela   +2 more
openaire   +1 more source

Anisotropic elliptic equations with VMO coefficients

Applied Mathematics and Computation, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources