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We introduce a high-order spline geometric approach for the initial boundary value problem for Maxwell's equations. The method is geometric in the sense that it discretizes in structure preserving fashion the two de Rham sequences of…

数值分析 · 数学 2023-03-03 Bernard Kapidani , Rafael Vázquez

In this paper, we present a model based on a local thermodynamic equilibrium, weakly ionized plasma-mixture model used for medical and technical applications in etching processes. We consider a simplified model based on the Maxwell-Stefan…

数值分析 · 数学 2015-01-26 Juergen Geiser

We find a new homogeneous solution to the Einstein-Maxwell equations with a cosmological term. The spacetime manifold is $R \times S^3$. The spacetime metric admits a simply transitive isometry group $G = R \times SU(2)$ of isometries and…

广义相对论与量子宇宙学 · 物理学 2022-04-06 I. M. Anderson , C. G. Torre

We describe a novel Godunov-type numerical method for solving the equations of resistive relativistic magnetohydrodynamics. In the proposed approach, the spatial components of both magnetic and electric fields are located at zone interfaces…

计算物理 · 物理学 2019-05-01 A. Mignone , G. Mattia , G. Bodo , L. Del Zanna

This paper proposes a frequency/time hybrid integral-equation method for the time dependent wave equation in two and three-dimensional spatial domains. Relying on Fourier Transformation in time, the method utilizes a fixed…

数值分析 · 数学 2020-04-30 Thomas G. Anderson , Oscar P. Bruno , Mark Lyon

We present both, theory and an algorithm for solving time-harmonic wave problems in a general setting. The time-harmonic solutions will be achieved by computing time-periodic solutions of the original wave equations. Thus, an exact…

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

The interface problem describing the scattering of time-harmonic electromagnetic waves by a dielectric body is often formulated as a pair of coupled boundary integral equations for the electric and magnetic current densities on the…

数值分析 · 数学 2011-02-28 Martin Costabel , Frédérique Le Louër

This paper is concerned with weak solutions {e,h} in L^2 x L^2 of the time-dependent Maxwell equations. We show that these solutions obey an energy equality. Our method of proof is based on the approximation of {e,h} by its Steklov mean…

偏微分方程分析 · 数学 2021-05-18 Joachim Naumann

We consider the time-harmonic Maxwell equations with impedance boundary conditions on a bounded Lipschitz domain $\Omega$ with analytic boundary $\Gamma$. We suppose that $\Omega$ consists of multiple subdomains, and that the permeability…

数值分析 · 数学 2026-03-19 Jens Markus Melenk , David Wörgötter

A quantization scheme for the phenomenological Maxwell theory of the full electromagnetic field in an inhomogeneous three-dimensional, dispersive and absorbing dielectric medium is developed. The classical Maxwell equations with spatially…

量子物理 · 物理学 2009-10-30 Ho Trung Dung , L. Knoell , D. -G. Welsch

We prove the existence of infinitely many nontrivial solutions for time-harmonic nonlinear Maxwell's equations on bounded domains and on $\mathbb{R}^3$ using dual variational methods. In the dual setting we apply a new version of the…

偏微分方程分析 · 数学 2025-05-05 Rainer Mandel

In this paper we present a new regularized electric flux volume integral equation (D-VIE) for modeling high-contrast conductive dielectric objects in a broad frequency range. This new formulation is particularly suitable for modeling…

图像与视频处理 · 电气工程与系统科学 2021-08-25 Clément Henry , Adrien Merlini , Lyes Rahmouni , Francesco P. Andriulli

We are concerned with increasing stability in the inverse source problems for the time-dependent Maxwell equations in R^3 , where the source term is compactly supported in both time and spatial variables. By using the Fourier transform,…

偏微分方程分析 · 数学 2024-02-27 Suliang Si

We describe a fourth-order accurate finite-difference time-domain scheme for solving dispersive Maxwell's equations with nonlinear multi-level carrier kinetics models. The scheme is based on an efficient single-step three time-level…

We are interested in the Helmholtz equation in a junction of two periodic half-spaces. When the overall medium is periodic in the direction of the interface, Fliss and Joly (2019) proposed a method which consists in applying a partial…

偏微分方程分析 · 数学 2025-05-07 Pierre Amenoagbadji , Sonia Fliss , Patrick Joly

We prove polynomial and exponential decay at infinity of eigen-vectors of partial differential operators related to radiation problems for time-harmonic generalized Maxwell systems in an exterior domain with non-smooth inhomogeneous,…

偏微分方程分析 · 数学 2011-05-23 Dirk Pauly

One way of improving the behavior of finite element schemes for classical, time-dependent Maxwell's equations, is to render them from their hyperbolic character to elliptic form. This paper is devoted to the study of the stabilized linear…

数值分析 · 数学 2024-09-23 M. Asadzadeh , L. Beilina

In this paper we extend analysis of the WaveHoltz iteration -- a time-domain iterative method for the solution of the Helmholtz equation. We expand the previous analysis of energy conserving problems and prove convergence of the WaveHoltz…

数值分析 · 数学 2022-05-26 Fortino Garcia , Daniel Appelö , Olof Runborg

Hybrid resonance is a physical mechanism for the heating of a magnetic plasma. In our context hybrid resonance is a solution of the time harmonic Maxwell's equations with smooth coefficients, where the dielectric tensor is a non diagonal…

等离子体物理 · 物理学 2019-08-16 Bruno Després , Lise-Marie Imbert-Gérard , Ricardo Weder

In this paper, we propose an accurate numerical means built upon a spectral-Galerkin method in spatial discretization and an enriched multi-step spectral-collocation approach in temporal direction, for Maxwell equations in Cole-Cole…

数值分析 · 数学 2018-01-25 Can Huang , Li-lian Wang