Results 21 to 30 of about 674 (67)

H\"older regularity for Maxwell's equations under minimal assumptions on the coefficients

open access: yes, 2018
We prove global H\"older regularity for the solutions to the time-harmonic anisotropic Maxwell's equations, under the assumptions of H\"older continuous coefficients. The regularity hypotheses on the coefficients are minimal. The same estimates hold also
Alberti, Giovanni S.
core   +1 more source

Curvature stabilized skyrmions with angular momentum

open access: yes, 2019
We examine skyrmionic field configurations on a spherical ferromagnet with large normal anisotropy. Exploiting variational concepts of angular momentum we find a new family of localized solutions to the Landau-Lifshitz equation that are topologically ...
Melcher, Christof, Sakellaris, Zisis N.
core   +1 more source

Multiple Aharonov--Bohm eigenvalues: the case of the first eigenvalue on the disk

open access: yes, 2018
It is known that the first eigenvalue for Aharonov--Bohm operators with half-integer circulation in the unit disk is double if the potential's pole is located at the origin. We prove that in fact it is simple as the pole $a\neq 0$
Abatangelo, Laura
core   +1 more source

Klein–Gordon–Maxwell Systems with Nonconstant Coupling Coefficient

open access: yesAdvanced Nonlinear Studies, 2018
We study a Klein–Gordon–Maxwell system in a bounded spatial domain under Neumann boundary conditions on the electric potential. We allow a nonconstant coupling coefficient. For sufficiently small data, we find infinitely many static solutions.
Lazzo Monica, Pisani Lorenzo
doaj   +1 more source

Klein-Gordon-Maxwell System in a bounded domain

open access: yes, 2008
This paper is concerned with the Klein-Gordon-Maxwell system in a bounded spatial domain. We discuss the existence of standing waves $\psi=u(x)e^{-i\omega t}$ in equilibrium with a purely electrostatic field $\mathbf{E}=-\nabla\phi(x)$.
d'Avenia, Pietro   +2 more
core   +2 more sources

On the well-posedness of a multiscale mathematical model for Lithium-ion batteries

open access: yesAdvances in Nonlinear Analysis, 2018
We consider the mathematical treatment of a system of nonlinear partial differential equations based on a model, proposed in 1972 by J. Newman, in which the coupling between the Lithium concentration, the phase potentials and temperature in the ...
Díaz J. Ildefonso   +2 more
doaj   +1 more source

EXACT SOLUTIONS OF THE HIGHER-ORDER NONLINEAR SCHR\"{O}DINGER EQUATION WITH CUBIC-QUINTIC NONLINEARITIES, SELF-STEEPING AND SELF-FREQUENCY SHIFT EFFECTS

open access: yes, 2016
In this paper, the F-expansion method has been used to find several types of exact solutions of the higher-order nonlinear Schrödinger (HONLS) equation with cubic-quintic nonlinearities, self-steeping and self-frequency shift effects which describes the ...
M. M. Hassan   +2 more
semanticscholar   +1 more source

Quantization effects for multi-component Ginzburg-Landau vortices

open access: yesAdvanced Nonlinear Studies
In this paper, we are concerned with n-component Ginzburg-Landau equations on R2 ${\mathbb{R}}^{2}$ . By introducing a diffusion constant for each component, we discuss that the n-component equations are different from n-copies of the single Ginzburg ...
Hadiji Rejeb, Han Jongmin, Sohn Juhee
doaj   +1 more source

A concentration phenomenon for semilinear elliptic equations

open access: yes, 2012
For a domain $\Omega\subset\dR^N$ we consider the equation $ -\Delta u + V(x)u = Q_n(x)\abs{u}^{p-2}u$ with zero Dirichlet boundary conditions and $p\in(2,2^*)$.
A.V. Buryak   +16 more
core   +1 more source

Stability of rarefaction wave for relaxed compressible Navier-Stokes equations with density-dependent viscosity

open access: yesAdvances in Nonlinear Analysis
This article shows time-asymptotic nonlinear stability of rarefaction wave to the Cauchy problem for the one-dimensional relaxed compressible Navier-Stokes equations with density-dependent viscosity.
Zhang Nangao
doaj   +1 more source

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