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A fully discrete Galerkin scheme for a thermodynamically consistent transient Max-well-Stefan system for the mass particle densities, coupled to the Poisson equation for the electric potential, is investigated. The system models the…

数值分析 · 数学 2018-09-05 Ansgar Jüngel , Oliver Leingang

We obtain and study static, spherically symmetric solutions for the Einstein - generalized Maxwell field system in 2n dimensions, with possible inclusion of a massless scalar field. The generalization preserves the conformal invariance of…

广义相对论与量子宇宙学 · 物理学 2011-04-15 Kirill A. Bronnikov , Julio Cesar Fabris

A new method has been presented of constructing a class of exact solutions of an infinite self-linking chain of the Vlasov equations for distribution functions of kinematic quantities of all orders. Using the characteristic transformation…

数学物理 · 物理学 2025-06-30 E. E. Perepelkin , B. I. Sadovnikov , N. G. Inozemtseva , A. S. Medvedev

Cylindrically symmetric inhomogeneous cosmological model for bulk viscous fluid distribution with electromagnetic field is obtained. The source of the magnetic field is due to an electric current produced along the z-axis. $F_{12}$ is the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Anirudh Pradhan , Vandana Rai , Kanti Jotania

In this paper, we consider the compressible Euler-Maxwell equations arising in semiconductor physics, which take the form of Euler equations for the conservation laws of mass density and current density for electrons, coupled to Maxwell's…

偏微分方程分析 · 数学 2015-03-17 Jiang Xu

We establish the existence of a family of static, spherically symmetric spacetimes that are solutions of the Einstein Field Equations of General Relativity coupled to the electric field of a static point charge obeying the equations of…

广义相对论与量子宇宙学 · 物理学 2025-08-11 Erik Amorim

We develop a new method for describing the dynamics of 3-dimensional thermal plasmas. Using a piecewise constant 1-particle distribution, we reduce the Vlasov equation to a generalized Lorentz force equation for a family of vector fields…

等离子体物理 · 物理学 2015-05-13 D. A. Burton , A. Noble , H. Wen

We consider the $3$-dimensional relativistic Vlasov-Maxwell system with data without compact support in momentum space. We prove two continuation criteria for solutions to this system. First, we show that a regular solution can be continued…

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

We show that the quasi-stationary states observed in the $N$-particle dynamics of the Hamiltonian Mean-Field (HMF) model are nothing but Vlasov stable homogeneous (zero magnetization) states. There is an infinity of Vlasov stable…

The full compressible magnetohydrodynamic equations can be derived formally from the complete electromagnetic fluid system in some sense as the dielectric constant tends to zero. This process is usually referred as magnetohydrodynamic…

偏微分方程分析 · 数学 2015-10-26 Song Jiang , Fucai Li

It is shown, for the self-consistent system of scalar, electro-magnetic and gravitational fields in general relativity, that the equations of motion admit a special kind of solutions with spherical or cylindrical symmetry. For these…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Yu. P. Rybakov , B. Saha , G. N. Shikin

This paper considers the discontinuous Galerkin (DG) methods for solving the Vlasov-Maxwell (VM) system, a fundamental model for collisionless magnetized plasma. The DG methods provide accurate numerical description with conservation and…

数值分析 · 数学 2022-10-17 Andrés Galindo-Olarte , Juntao Huang , Jennifer K. Ryan , Yingda Cheng

This paper is concerned with the asymptotic behavior of small data solutions to the three-dimensional Vlasov-Maxwell system in the exterior of a light cone. The plasma does not have to be neutral and no compact support assumptions are…

偏微分方程分析 · 数学 2020-12-14 Léo Bigorgne

A new representation of electromagnetic gyrokinetic Vlasov-Maxwell theory is presented in which the gyrocenter equations of motion are expressed solely in terms of the perturbed electric and magnetic fields. In this representation, the…

等离子体物理 · 物理学 2020-09-25 Alain J. Brizard

We consider the relativistic Vlasov-Maxwell system in three dimensions and study the limiting asymptotic behavior as $t \to \infty$ of solutions launched by small, compactly supported initial data. In particular, we prove that such…

偏微分方程分析 · 数学 2024-03-12 Stephen Pankavich , Jonathan Ben-Artzi

We construct, by numerical means, static solutions of the spherically symmetric Einstein-Vlasov-Maxwell system and investigate various features of the solutions. This extends a previous investigation \cite{AR1} of the chargeless case. We…

广义相对论与量子宇宙学 · 物理学 2011-01-24 Hakan Andreasson , Mikael Eklund , Gerhard Rein

We prove that for any global solution to the Vlasov-Maxwell system arising from compactly supported data, and such that the electromagnetic field decays fast enough, the distribution function exhibits a modified scattering dynamic. In…

偏微分方程分析 · 数学 2025-06-23 Emile Breton

We study radially symmetric solutions to the 2D Vlasov-Maxwell system and construct solutions that initially possess arbitrarily small $C^k$ norms ($k \geq 1$) for the charge densities and the electric fields, but attain arbitrarily large…

偏微分方程分析 · 数学 2023-11-14 Katherine Zhiyuan Zhang

We consider a self-gravitating collisionless gas as described by the Vlasov-Poisson or Einstein-Vlasov system or a self-gravitating fluid ball as described by the Euler-Poisson or Einstein-Euler system. We give a simple proof for the finite…

广义相对论与量子宇宙学 · 物理学 2013-12-16 Tobias Ramming , Gerhard Rein

We present a new method for solving the relativistic Vlasov--Maxwell system of equations, applicable to a wide range of extreme high-energy-density astrophysical and laboratory environments. The method directly discretizes the kinetic…

高能天体物理现象 · 物理学 2026-02-20 James Juno , Grant Johnson , Alexander Philippov , Ammar Hakim , Alexander Chernoglazov , Shuzhe Zeng