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相关论文: Quasineutral limit of the Vlasov-Poisson system wi…

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Kinetic equations of Vlasov type are in widespread use as models in plasma physics. A well known example is the Vlasov-Poisson system for collisionless, unmagnetised plasma. In these notes, we discuss recent progress on the quasineutral…

偏微分方程分析 · 数学 2020-11-17 Megan Griffin-Pickering , Mikaela Iacobelli

We study the quasineutral limit of the isothermal Euler-Poisson system describing a plasma made of ions and massless electrons. The analysis is achieved in a domain of $\R^3$ and thus extends former results by Cordier and Grenier [Comm.…

偏微分方程分析 · 数学 2011-12-02 David Gérard-Varet , Daniel Han-Kwan , Frédéric Rousset

In this paper, we consider the quasineutral limit of the Euler-Poisson equation for a clod, ion-acoustic plasma when the Debye length tends to zero. When the ion-acoustic plasma is cold, the Euler-Poisson equation is pressureless and hence…

数学物理 · 物理学 2016-07-27 Xueke Pu , Boling Guo

We construct the approximate solutions to the Vlasov--Poisson system in a half-space, which arises in the study of the quasi-neutral limit problem in the presence of a sharp boundary layer, referred as to the plasma sheath in the context of…

数学物理 · 物理学 2024-01-17 Chang-Yeol Jung , Bongsuk Kwon , Masahiro Suzuki , Masahiro Takayama

This article presents an overview of quasineutral limits in plasma models. Starting from the Vlasov-Poisson system, it explains the role of the Debye length, the emergence of a kinetic incompressibility constraint, and the stability issues…

偏微分方程分析 · 数学 2026-05-28 Mikaela Iacobelli

This work is concerned with the study of singular limits for the Vlasov-Poisson system in the case of massless electrons (VPME), which is a kinetic system modelling the ions in a plasma. Our objective is threefold: first, we provide a mean…

偏微分方程分析 · 数学 2018-11-12 Megan Griffin-Pickering , Mikaela Iacobelli

In this work, we study the quasineutral limit of the one-dimensional Vlasov-Poisson equation for ions with massless thermalized electrons. We prove new weak-strong stability estimates in the Wasserstein metric that allow us to extend and…

偏微分方程分析 · 数学 2014-12-15 Daniel Han-Kwan , Mikaela Iacobelli

We study the quasineutral limit of a Vlasov-Poisson system that describes the dynamics of ions in a plasma. We handle data with Sobolev regularity under the sharp assumption that the profile of the initial data in the velocity variable…

偏微分方程分析 · 数学 2015-09-01 Daniel Han-Kwan , Frédéric Rousset

In this article, we design Asymptotic-Preserving Particle-In-Cell methods for the Vlasov-Maxwell system in the quasi-neutral limit, this limit being characterized by a Debye length negligible compared to the space scale of the problem.…

等离子体物理 · 物理学 2015-09-15 Pierre Degond , Fabrice Deluzet , David Doyen

In this work, we propose a new numerical method for the Vlasov-Poisson system that is both asymptotically consistent and stable in the quasineutral regime, i.e. when the Debye length is small compared to the characteristic spatial scale of…

数值分析 · 数学 2025-04-09 Alain Blaustein , Giacomo Dimarco , Francis Filbet , Marie-Hélène Vignal

We study the quasineutral limit for the relativistic Vlasov-Maxwell system in the framework of analytic regularity. Following the high regularity approach introduced by Grenier [44] for the Vlasov-Poisson system, we construct local-in-time…

偏微分方程分析 · 数学 2025-05-19 Antoine Gagnebin , Mikaela Iacobelli , Alexandre Rege , Stefano Rossi

In this paper, we consider the quasi-neutral limit of a three dimensional Euler-Poisson system of compressible fluids coupled to a magnetic field. We prove that, as Debye length tends to zero, periodic initial-value problems of the model…

偏微分方程分析 · 数学 2018-07-04 Jianwei Yang

The electro-diffusion model, which arises in electrohydrodynamics, is a coupling between the Nernst-Planck-Poisson system and the incompressible Navier-Stokes equations. For the generally smooth doping profile, the quasineutral limit…

偏微分方程分析 · 数学 2009-05-19 Fucai Li

Slow manifold reduction and the theory of Poisson-Dirac submanifolds are used to deduce a Hamiltonian formulation for a quasineutral limit of the planar, collisionless, magnetized Vlasov-Poisson system. Motion on the slow manifold models…

数学物理 · 物理学 2025-08-14 J. W. Burby , D. A. Kaltsas , P. J. Morrison , E. Tassi , G. N. Throumoulopoulos

Due to ion-electron collisions, it is impossible to derive any two-fluid model for plasma as a direct hydrodynamic limit of the Vlasov-Poisson-Landau system for ions and electrons. At the same time, electrons are much lighter than their ion…

偏微分方程分析 · 数学 2023-01-04 Patrick Flynn , Yan Guo

In this paper, we establish the stability of the quasineutral limit for the ionic Vlasov-Poisson system under perturbations exponentially small in Wasserstein sense. Notably, we emphasize that exponential smallness is a necessary condition…

偏微分方程分析 · 数学 2024-03-08 Megan Griffin-Pickering , Mikaela Iacobelli

In this paper, we study the Vlasov-Poisson system with massless electrons (VPME) near quasineutrality and with uncertainties. Based on the idea of reformulation on the Poisson equation by [P. Degond et.al., $\textit{Journal of Computational…

数值分析 · 数学 2026-03-17 Guangwei Liu , Liu Liu , Yanli Wang

In this paper, we study the quasineutral limit of the isothermal Euler-Poisson equation for ions, in a domain with boundary. This is a follow-up to our previous work \cite{GVHKR}, devoted to no-penetration as well as subsonic outflow…

偏微分方程分析 · 数学 2014-03-06 David Gérard-Varet , Daniel Han-Kwan , Frédéric Rousset

In the paper, we consider the Cauchy problem on the spatially one-dimensional Vlasov-Poisson-Landau system modelling the motion of ions under a generalized Boltzmann relation. Let the Knudsen number and the Debye length be given as…

偏微分方程分析 · 数学 2022-12-16 Renjun Duan , Dongcheng Yang , Hongjun Yu

This paper is concerned with the analysis of a mathematical model arising in plasma physics, more specifically in fusion research. It directly follows \cite{DHK1}, where the tri-dimensional analysis of a Vlasov-Poisson equation with finite…

偏微分方程分析 · 数学 2010-11-30 Daniel Han-Kwan
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