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Electromagnetic bound states in the radiation continuum are studied for periodic double arrays of subwavelength dielectric cylinders in TM polarization. They are similar to localized waveguide mode solutions of Maxwell's equations for metal…

数学物理 · 物理学 2010-10-05 Friends R. Ndangali , Sergei V. Shabanov

We give a necessary and sufficient condition, of geometric type, for the uniform decay of energy of solutions of the linear system of magnetoelasticity in a bounded domain with smooth boundary. A Dirichlet-type boundary condition is…

偏微分方程分析 · 数学 2007-05-23 Thomas Duyckaerts

We derive the equations of nonlinear magnetoelastostatics using several variational formulations involving the mechanical deformation and an independent field representing the magnetic component. An equivalence is also discussed, modulo…

经典物理 · 物理学 2023-12-21 Basant Lal Sharma , Prashant Saxena

We study stationary solutions of the damped wave equation on a compact and smooth Riemannian manifold without boundary. In the high frequency limit, we prove that a sequence of $\beta$-damped stationary solutions cannot be completely…

偏微分方程分析 · 数学 2016-11-21 Gabriel Riviere , Stéphane Nonnenmacher

We investigate, analytically and numerically, families of bright solitons in a system of two linearly coupled nonlinear Schrodinger/Gross-Pitaevskii equations, describing two Bose-Einstein condensates trapped in an asymmetric double-well…

斑图形成与孤子 · 物理学 2015-06-26 Valery S. Shchesnovich , Boris A. Malomed , Roberto A. Kraenkel

We consider the free boundary problem for the plasma-vacuum interface in ideal compressible magnetohydrodynamics (MHD). In the plasma region the flow is governed by the usual compressible MHD equations, while in the vacuum region we…

偏微分方程分析 · 数学 2011-12-16 Paolo Secchi , Yuri Trakhinin

This paper introduces a novel class of indirect boundary integral equation (BIE) formulations for the solution of electromagnetic scattering problems involving smooth perfectly electric conductors (PECs) in three-dimensions. These…

数值分析 · 数学 2025-05-29 Juan Burbano-Gallegos , Carlos Pérez-Arancibia , Catalin Turc

In this paper we continue the study started in part I (posted). We consider a planar, bounded, $m$-connected region $\Omega$, and let $\bord\Omega$ be its boundary. Let $\mathcal{T}$ be a cellular decomposition of $\Omega\cup\bord\Omega$,…

微分几何 · 数学 2012-08-23 Sa'ar Hersonsky

The initial-boundary value problem (IBVP) for the Maxwell-Bloch equations with an arbitrary inhomogeneous broadening and periodic boundary condition is studied. This IBVP describes the propagation of an electromagnetic wave generated by…

动力系统 · 数学 2023-12-14 Maria Filipkovska

We derive explicit solution representations for linear, dissipative, second-order Initial-Boundary Value Problems (IBVPs) with coefficients that are spatially varying, with linear, constant-coefficient, two-point boundary conditions. We…

偏微分方程分析 · 数学 2024-06-04 Matthew Farkas , Bernard Deconinck

We study numerically the existence and character of bound states for positive and negative point charges shielded by the response of a two-dimensional homogeneous electron gas. The problem is related to many physical situations and has…

材料科学 · 物理学 2007-05-23 I. Nagy , M. J. Puska , N. Zabala

In this work we numerically compute the bifurcation curve of stationary solutions for the free boundary problem for MEMS in one space dimension. It has a single turning point, as in the case of the small aspect ratio limit. We also find a…

偏微分方程分析 · 数学 2015-07-07 Gilberto Flores , Noel F. Smyth

This paper focuses on the initial- and boundary-value problem for the two-dimensional micropolar equations with only angular velocity dissipation in a smooth bounded domain. The aim here is to establish the global existence and uniqueness…

偏微分方程分析 · 数学 2017-09-20 Quansen Jiu , Jitao Liu , Jiahong Wu , Huan Yu

This work is concerned with establishing the existence and uniqueness of the solution to a mixed-type degenerate boundary value problem for a relativistic magnetohydrodynamics system. We first consider a full relativistic…

偏微分方程分析 · 数学 2023-06-27 Rahul Barthwal , T. Raja Sekhar

A nontopological soliton solution of dilaton-Maxwell theory describes a domain wall-like solution which confines magnetic flux in its core [G.W. Gibbons and C.G. Wells, Class. Quant. Grav. 11, 2499 (1994)]. Since the solution is not…

高能物理 - 理论 · 物理学 2014-11-04 J. R. Morris

We consider a macroscopic model describing a system of self-gravitating particles. We study the existence and uniqueness of non-negative stationary solutions and allude the differences to results obtained from classical gravitational…

偏微分方程分析 · 数学 2015-01-08 René Pinnau , Oliver Tse

The method is proposed for the study of many-point boundary value problems for systems of nonlinear ODE, by reducing them to special equivalent integral equations, and allows us [in contrast with the known method [1]] to consider boundary…

经典分析与常微分方程 · 数学 2012-05-11 Yu. A. Konyaev

When time-reversal symmetry is broken on its surface, topological insulators exhibit a magnetoelectric response which is described by axion electrodynamics. A direct consequence of this theory is the appearance of a magnetic field that…

介观与纳米尺度物理 · 物理学 2020-01-08 A. Martín-Ruiz , Omar Rodríguez-Tzompantzi , J. R. Maze , L. F. Urrutia

We study the inflow-outflow boundary value problem on an interval, the analog of the 1D shock tube problem for gas dynamics, for general systems of hyperbolic-parabolic conservation laws. In a first set of investigations, we study…

偏微分方程分析 · 数学 2021-12-09 Benjamin Melinand , Kevin Zumbrun

In this paper, we consider the initial-boundary value problem for the time-dependent Maxwell--Schr\"{o}dinger equations in the Coulomb gauge. We first prove the global existence of weak solutions to the equations. Next we propose an…

数值分析 · 数学 2017-03-08 Chupeng Ma , Liqun Cao , Jizu Huang , Yanping Lin