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相关论文: Finite Energy Superluminal Solutions of Maxwell Eq…

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The problem of classification of exact solutions of Maxwell's vacuum equations for admissible electromagnetic fields and homogeneous space-time with the group of motions $G_3(VIII)$ according to the Bianchi classification is considered. All…

广义相对论与量子宇宙学 · 物理学 2023-03-06 V. V. Obukhov

In this work, the paraxial version of Maxwell equations is derived with the use of two Riemann-Silberstein vectors. Exact solutions of these equations are then obtained representing the paraxial electromagnetic fields. These fields satisfy…

光学 · 物理学 2025-04-01 Tomasz Radozycki

The features of propagation of intense waves are of great interest for theory and experiment in electrodynamics and acoustics. The behavior of nonlinear waves in a bounded volume is of especial importance and, at the same time, is an…

经典物理 · 物理学 2013-06-05 E. Yu. Petrov , A. V. Kudrin

In this article (after some brief theoretical considerations) a bird-eye view is presented -with the help of nine figures- of the various experimental sectors of physics in which Superluminal motions seem to appear. In particular, a…

科普物理 · 物理学 2014-11-18 Erasmo Recami

Very little previous literature has considered the *exact* solution to Maxwell's equations for an infinite ideal cylindrical solenoid with an arbitrary time-dependent azimuthal surface current $K(t) \hat{\bf \phi}$. Most of the previous…

经典物理 · 物理学 2024-04-04 Edward Parker

We study finite energy solutions to quasilinear elliptic equations of the type $$ -\Delta_pu=\sigma \, u^q \quad \text{in } \mathbb{R}^n,$$ where $\Delta_p$ is the $p$-Laplacian, $p>1$, and $\sigma$ is a nonnegative function (or measure) on…

偏微分方程分析 · 数学 2014-09-16 Cao Tien Dat , Igor E. Verbitsky

This paper is concerned with weak solutions (e,h) in L^2 x L^2 of the Maxwell equations with nonlinear Ohm law and under perfect conductor boundary conditions. These solutions are defined in terms of integral identities with appropriate…

偏微分方程分析 · 数学 2025-03-27 Jens A. Griepentrog , Joachim Naumann

The aim of this paper is to examine some obtained exact solutions of the Einstein-Maxwell equations, especially their properties from a chronological point of view. Each our spacetime is stationary cylindrically symmetric and it is filled…

广义相对论与量子宇宙学 · 物理学 2009-10-31 P. Klepac , J. Horsky

The system of Maxwell equations with an initial condition in a vacuum is solved in a cylindrical coordinate system. It derives the cylindrical transverse electromagnetic wave mode in which the electric field and magnetic field are not in…

综合物理 · 物理学 2011-06-08 R. Chen , X. Li

In this paper, we analyze vertex-centered finite volume method (FVM) of any order for elliptic equations on rectangular meshes. The novelty is a unified proof of the inf-sup condition, based on which, we show that the FVM approximation…

数值分析 · 数学 2012-07-04 Zhimin Zhang , Qingsong Zou

We have studied the Maxwell-Higgs model on the surface of an infinite cylinder. In particular we show that this model supports self-dual topological soliton solutions on the infinite tube. Finally, the Bogomol'nyi-type equations are studied…

高能物理 - 理论 · 物理学 2015-07-20 Rodolfo Casana , Lucas Sourrouille

We prove the existence of infinite energy global solutions of the cubic wave equation in dimension greater than 3. The data is a typical element on the support of suitable probability measures.

偏微分方程分析 · 数学 2012-10-09 Nicolas Burq , Laurent Thomann , Nikolay Tzvetkov

In this paper, we consider an initial boundary value problem for Maxwell's equations. For this hyperbolic type problem, we derive guaranteed and computable upper bounds for the difference between the exact solution and any pair of vector…

偏微分方程分析 · 数学 2011-05-23 Dirk Pauly , Sergey Repin , Tuomo Rossi

We derive new results about existence and uniqueness of local and global solutions for nonlinear Schrodinger equation, including self-similar global solutions. Our analysis is performed in the framework of Marcinkiewicz spaces.

偏微分方程分析 · 数学 2007-11-22 P. Braz e Silva , L. C. F. Ferreira , E. J. Villamizar-Roa

New exact solution of the cylindrically symmetric Einstein-Maxwell equations is presented. The solution is singular on the axis of symmetry and at the radial infinity, where sources should be placed. The accepted source at the origin can be…

广义相对论与量子宇宙学 · 物理学 2009-12-04 Merab Gogberashvili

The goal of this work is to present an approach to the homogeneous Boltzmann equation for Maxwellian molecules with a physical collision kernel which allows us to construct unique solutions to the initial value problem in a space of…

偏微分方程分析 · 数学 2009-07-13 Marco Cannone , Grzegorz Karch

The paper formulates Maxwell's equations in 4-dimensional Euclidean space by embedding the electromagnetic vector potential in the frame vector $g_0$. Relativistic electrodynamics is the first problem tackled; in spite of using a geometry…

综合物理 · 物理学 2007-05-23 Jose B. Almeida

Many papers have been published over the years that either conjecture or even (claim to) prove the universality of the form of Maxwell's equations. We present yet another derivation of Maxwell's equations and discuss the conclusions…

经典物理 · 物理学 2025-01-24 C. Baumgarten

This paper describes infinite sets of polynomial equations in infinitely many variables with the property that the existence of a solution or even an approximate solution for every finite subset of the equations implies the existence of a…

泛函分析 · 数学 2025-03-03 Melvyn B. Nathanson , David A. Ross

We consider the Boltzmann equations for mixtures ofMaxwell gases. It is shown that in certain limiting case the equations admit self-similar solutions that can be constructed in explicit form. More precisely, the solutions have simple…

统计力学 · 物理学 2009-11-11 A. V. Bobylev , I. M. Gamba