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We study the Rellich type theorem (RT) for the Maxwell operator $\hat H^D=\hat D\hat H_0$ on ${\bf Z}^3$ with constant anisotropic medium, i.e. the permittivity and permeability of which are non-scalar constant diagonal matrices. We also…

Analysis of PDEs · Mathematics 2024-12-17 Hiroshi Isozaki , Olivier Poisson

We consider the static Maxwell system with an axially symmetric dielectric permittivity and construct complete systems of its solutions which can be used for analytic and numerical solution of corresponding boundary value problems.

Mathematical Physics · Physics 2010-07-09 Kira V. Khmelnytskaya , Vladislav V. Kravchenko , Hector Oviedo

Let X be a smooth projective Berkovich space over a complete discrete valuation field K of residue characteristic zero, endowed with an ample line bundle L. We introduce a general notion of (possibly singular) semipositive (or…

Algebraic Geometry · Mathematics 2014-01-22 S. Boucksom , C. Favre , M. Jonsson

We consider the inverse problem of the simultaneous reconstruction of the dielectric permittivity and magnetic permeability functions of the Maxwell's system in 3D with limited boundary observations of the electric field. The theoretical…

Numerical Analysis · Mathematics 2015-12-03 Larisa Beilina , Michel Cristofol , Kati Niinimäki

We consider a modified Boltzmann equation which contains, together with the collision operator, an additional drift term that is characterized by a matrix A. Furthermore, we consider a Maxwell gas, where the collision kernel has an angular…

Analysis of PDEs · Mathematics 2026-03-31 Bernhard Kepka

In this paper, we give a uniqueness result to a transport equation fulfilled by probability measure on a infinite dimensional Hilbert space. Main arguments are based on projective aspects and a probabilistic representation of the solutions.…

Analysis of PDEs · Mathematics 2016-09-14 Zied Ammari , Quentin Liard

We prove an existence and uniqueness result for solutions to linear $X$-elliptic equations with $L^1$ data and zero Dirichlet boundary conditions. Such solutions depend continuously on the datum. Moreover, we show that an improvement in the…

Analysis of PDEs · Mathematics 2025-06-19 Marco Picerni

A fundamental theorem of Liouville asserts that positive entire harmonic functions in Euclidean spaces must be constant. A remarkable Liouville-type theorem of Caffarelli-Gidas-Spruck states that positive entire solutions of $-\Delta u=u^{…

Analysis of PDEs · Mathematics 2024-09-23 BaoZhi Chu , YanYan Li , Zongyuan Li

The purpose of this paper is to prove that the spectrum of an isotropic Maxwell operator with electric permittivity and magnetic permeability that are periodic along certain directions and tending to a constant super-exponentially fast in…

Mathematical Physics · Physics 2009-11-10 Nikolai Filonov , Frederic Klopp

In this paper, we establish the non-uniqueness of solutions to the ideal magnetohydrodynamics equations in any dimension greater than three by proving the existence of infinitely many compactly supported weak solutions. In particular, these…

Analysis of PDEs · Mathematics 2026-03-03 Changxing Miao , Zhiwen Zhao

We consider the initial-boundary value problem in the halfspace for the system of equations of ideal Magneto-Hydrodynamics with a perfectly conducting wall boundary condition. We show the convergence of solutions to the solution of the…

Analysis of PDEs · Mathematics 2024-07-04 Paolo Secchi

In this paper, we extend and simplify the methods in [13] to improve the results on uniqueness of the boundary determination for the Maxwell equation. In particular, we show that the electromagnetic parameters are uniquely determined to…

Analysis of PDEs · Mathematics 2025-10-30 Chengyu Wu , Jiaqing Yang

We prove an inequality on the Wasserstein distance with quadratic cost between two solutions of the spatially homogeneous Boltzmann equation without angular cutoff, from which we deduce some uniqueness results. In particular, we obtain a…

Analysis of PDEs · Mathematics 2009-11-13 Nicolas Fournier , Hélène Guérin

We develop a solution theory for a generalized electro-magneto static Maxwell system in an exterior domain with anisotropic coefficients converging at infinity with a certain rate towards the identity. Our main goal is to treat right hand…

Analysis of PDEs · Mathematics 2011-05-23 Dirk Pauly

Maxwell equations provide a complete description of the electromagnetic (EM) phenomena, which have been one of the key fundamental-theories of modern physics, such as electromagnetism, optics, quantum theories, etc. The vacuum permittivity…

Classical Physics · Physics 2023-12-25 Zhiwei Sun

Complex formalism of Riemann - Silberstein - Majorana - Oppenheimer in Maxwell electrodynamics is extended to the case of arbitrary pseudo-Riemannian space - time in accordance with the tetrad recipe of Tetrode - Weyl - Fock - Ivanenko. In…

Mathematical Physics · Physics 2009-05-12 N. G. Tokarevskaya , E. M. Ovsiyuk , V. M. Red'kov

We have solved the Einstein-Maxwell equations for a class of isotropic metrics with constant spatial curvature in the presence of magnetic fields. We consider a slight modification of the Tolman averaging relations so that the…

General Relativity and Quantum Cosmology · Physics 2014-09-11 Eduardo Bittencourt , José Salim , Grasiele B. dos Santos

All non-equivalent solutions of vacuum Maxwell equations are found for the case when space-time manifolds admit simply transitive four-parameter groups of motions $G_4(N)$. The potentials of the admissible electromagnetic fields admit the…

Mathematical Physics · Physics 2023-12-18 V. V. Obukhov , S. V. Chervon , D. V. Kartashov

Existence of local-in-time unique solution and loss of smoothness of full Magnet-Hydro-Dynamics system (MHD) is considered for periodic initial data. The result is proven using Fujita-Kato's method in $\ell^1$ based (for the Fourier…

Analysis of PDEs · Mathematics 2011-09-29 Slim Ibrahim , Tsuyoshi Yoneda

We show the existence of strong solutions in Sobolev-Slobodetskii spaces to the stationary compressible Navier-Stokes equations with inflow boundary condition. Our result holds provided certain condition on the shape of the boundary around…

Analysis of PDEs · Mathematics 2019-11-13 Piotr B. Mucha , Tomasz Piasecki