Results 301 to 310 of about 3,580,780 (366)

The anisotropic migrator's equation

SEG Technical Program Expanded Abstracts 1989, 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

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.
Prieto, M., Santiago, R., Espadas, D., Llorente, I. M., Tirado, F.   +4 more
openaire   +2 more sources

A Regularized Equation for Anisotropic Motion-by-Curvature

SIAM Journal on Applied Mathematics, 1992
Mathematics Technical ...
DI CARLO, Antonio, GURTIN M. E., PODIO GUIDUGLI P.   +2 more
openaire   +3 more sources

Symmetry results for critical anisotropic p-Laplacian equations in convex cones

Geometric and Functional Analysis, 2019
Given n≥2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$n \ge 2$$\end ...
Giulio Ciraolo, A. Figalli, Alberto Roncoroni   +2 more
semanticscholar   +1 more source

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

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.
openaire   +2 more sources

Hopf Lemma and regularity results for quasilinear anisotropic elliptic equations

Calculus of Variations and Partial Differential Equations, 2018
We consider a class of quasi-linear anisotropic elliptic equations, possibly degenerate or singular, which are of interest in several applications such as computer vision and continuum mechanics.
D. Castorina, G. Riey, B. Sciunzi
semanticscholar   +1 more source

Entropy and renormalized solutions of anisotropic elliptic equations with variable nonlinearity exponents

Sbornik: Mathematics, 2019
The Dirichlet problem is considered in arbitrary domains for a class of second-order anisotropic elliptic equations with variable nonlinearity exponents and right-hand sides in .
L. M. Kozhevnikova
semanticscholar   +1 more source

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

Anisotropic Sobolev embeddings and the speed of propagation for parabolic equations

Journal of evolution equations (Printed ed.), 2018
We consider a quasilinear parabolic Cauchy problem with spatial anisotropy of orthotropic type and study the spatial localization of solutions. Assuming that the initial datum is localized with respect to a coordinate having slow diffusion rate, we bound
F. Düzgün, S. Mosconi, V. Vespri
semanticscholar   +1 more source