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相关论文: An asymptotic preserving scheme for the relativist…

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We develop a unified geometric formulation of the Maxwell-Vlasov system using the infinite-dimensional Skinner-Rusk (SR) formalism. In this framework, particles and fields are treated simultaneously within a single presymplectic manifold,…

数学物理 · 物理学 2025-11-26 Leonardo Colombo

We study the Richtmyer--Meshkov (RM) instability of a relativistic perfect fluid by means of high order numerical simulations with adaptive mesh refinement (AMR). The numerical scheme adopts a finite volume Weighted Essentially…

流体动力学 · 物理学 2014-11-04 Olindo Zanotti , Michael Dumbser

In this paper the analysis of an asymptotic preserving (AP) IMEX-RK finite volume scheme for the wave equation system in the zero Mach number limit is presented. The accuracy of a numerical scheme at low Mach numbers is its ability to…

数值分析 · 数学 2019-10-01 Arun K. R. , Arnab J. Das Gupta , Saurav Samantaray

We prove the convergence of a spectral discretization of the Vlasov-Poisson system. The velocity term of the Vlasov equation is discretized using either Hermite functions on the infinite domain or Legendre polynomials on a bounded domain.…

数值分析 · 数学 2018-03-29 Gianmarco Manzini , Daniele Funaro , Gian Luca Delzanno

Fully kinetic simulations of the Vlasov equation require a careful numerical treatment of phase space advections to ensure accuracy and stability in six dimensions. To test the accuracy of full Vlasov codes, we have developed a surprisingly…

等离子体物理 · 物理学 2025-10-20 M. Pelkner , K. Hallatschek , M. Raeth

An asymptotic preserving and energy stable scheme for the barotropic Euler system under the low Mach number scaling is designed and analysed. A velocity shift proportional to the pressure gradient is introduced in the convective fluxes,…

数值分析 · 数学 2023-07-21 K. R. Arun , Rahuldev Ghorai , Mainak Kar

We investigate the three-dimensional compressible Euler-Maxwell system, a model for simulating the transport of electrons interacting with propagating electromagnetic waves in semiconductor devices. First, we show the global well-posedness…

偏微分方程分析 · 数学 2024-07-02 Timothée Crin-Barat , Yue-Jun Peng , Ling-Yun Shou , Jiang Xu

In this article the static Einstein-Vlasov-Maxwell system is considered in spherical symmetry. This system describes an ensemble of charged particles interacting by general relativistic gravity and Coulomb forces. First, a proof for local…

广义相对论与量子宇宙学 · 物理学 2019-10-09 Maximilian Thaller

In this paper, we study the numerical solution of an elastic/viscoelastic wave equation with non smooth wave speed and internal localized distributed Kelvin-Voigt damping acting faraway from the boundary. Our method is based on the Finite…

偏微分方程分析 · 数学 2025-04-03 Stéphane Gerbi , Rayan Nasser , Ali Wehbe

We present the applications of variational--wavelet approach for computing multiresolution/multiscale representation for solution of some approximations of Vlasov-Maxwell equations.

加速器物理 · 物理学 2007-05-23 Antonina N. Fedorova , Michael G. Zeitlin

The existence and the properties of isolated solutions to the relativistic Vlasov-Maxwell system with initial data on the backward hyperboloid $t=-\sqrt{1+|x|^2}$ are investigated. Isolated solutions of Vlasov-Maxwell can be defined by the…

数学物理 · 物理学 2011-11-10 Simone Calogero

This paper deals with diffusive limit of the p-system with damping and its approximation by an Asymptotic Preserving (AP) Finite Volume scheme. Provided the system is endowed with an entropy-entropy flux pair, we give the convergence rate…

数值分析 · 数学 2016-09-07 Christophe Berthon , Marianne Bessemoulin-Chatard , Hélène Mathis

The thermal radiative transfer equations model temperature evolution through a background medium as a result of radiation. When a large number of particles are absorbed in a short time scale, the dynamics tend to a non-linear diffusion-type…

数值分析 · 数学 2025-03-03 Chinmay Patwardhan , Martin Frank , Jonas Kusch

We prove global existence of the $3D$ relativistic Vlasov-Maxwell system for a class of arbitrary large regular initial data with spherical symmetry, in which the initial distribution function of particles is assumed to decay fast but…

偏微分方程分析 · 数学 2022-03-04 Xuecheng Wang

We present a new Vlasov code for collisionless plasmas in the nonrelativistic regime. A Darwin approximation is used for suppressing electromagnetic vacuum modes. The spatial integration is based on an extension of the flux-conservative…

计算物理 · 物理学 2007-05-23 H. Schmitz , R. Grauer

In this paper we study the large-time behavior of classical solutions to the two-species Vlasov-Maxwell-Boltzmann system in the whole space $\R^3$. The existence of global in time nearby Maxwellian solutions is known from [34] in 2006.…

偏微分方程分析 · 数学 2016-02-22 Renjun Duan , Robert M. Strain

Using the iterative Scheme we prove the local existence and uniqueness of solutions of the spherically symmetric Einstein-Vlasov-Maxwell system with small initial data. We prove a continuation criterion to global in-time solutions.

广义相对论与量子宇宙学 · 物理学 2009-11-10 P. Noundjeu , N. Noutchegueme

This paper presents the construction of two numerical schemes for the solution of hyperbolic systems with relaxation source terms. The methods are built by considering the relaxation system as a whole, without separating the resolution of…

数值分析 · 数学 2025-10-03 C Mahmoud , H Mathis

The present paper introduces an efficient and accurate numerical scheme for the solution of a highly anisotropic elliptic equation, the anisotropy direction being given by a variable vector field. This scheme is based on an asymptotic…

数值分析 · 数学 2014-04-08 Pierre Degond , Fabrice Deluzet , Alexei Lozinski , Jacek Narski , Claudia Negulescu

We consider solutions to nonlinear hyperbolic systems of balance laws with stiff relaxation and formally derive a parabolic-type effective system describing the late-time asymptotics of these solutions. We show that many examples from…

偏微分方程分析 · 数学 2011-06-01 Philippe G. LeFloch