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We study the large-time asymptotic behavior of solutions to the one-dimensional damped pressureless Euler-Poisson system with variable background states, subject to a neutrality condition. In the case where the background density converges…

偏微分方程分析 · 数学 2025-06-10 Young-Pil Choi , Dong-ha Kim , Dowan Koo , Eitan Tadmor

We prove quantitative decay rates for the linearised Vlasov-Poisson system around compactly supported equilibria. More precisely, we prove decay of the gravitational potential induced by the radial dynamics of this system in the presence of…

偏微分方程分析 · 数学 2025-05-22 Mahir Hadzic , Matthew Schrecker

We examine the phenomenon of Landau Damping in relativistic plasmas via a study of the relativistic Vlasov-Poisson system (rVP) on the torus for initial data sufficiently close to a spatially uniform steady state. We find that if the steady…

数学物理 · 物理学 2016-01-21 Brent Young

The dynamics of nonlinear ion-acoustic solitary waves in the presence of kinetic (Landau type) damping have been investigated in a collisionless, non-magnetized electron-ion plasma. A cold ion fluid model, coupled to a Vlasov-type kinetic…

等离子体物理 · 物理学 2024-06-07 Hadia Mushtaq , Kuldeep Singh , Sadia Zaheer , Ioannis Kourakis

We investigate the relaxation problem for the one-dimensional pressureless Euler--Poisson equations with the initial density being a finite Radon measure. The entropy solution of this linearly degenerate hyperbolic system converges to the…

偏微分方程分析 · 数学 2025-07-22 GuiRong Tang

A method of solution of the collisionless Vlasov equation, by following collisionless phase point trajectories in phase space, is presented. It is shown that by increasing the number of phase points, without enhancing the resolution of…

等离子体物理 · 物理学 2010-11-17 H. Abbasi , M. H. Jenab , H. Hakimi Pajouh

The classic problem of the dynamic evolution of Langmuir electron waves in a collisionless plasma and their Landau damping is cast as a second-order, self-adjoint problem with a continuum spectrum of real and positive squared frequencies.…

等离子体物理 · 物理学 2018-04-04 Jesus J. Ramos , Ryan L. White

In this paper, we give an elementary proof of the nonlinear Landau damping for the Vlasov-Poisson system near Penrose stable equilibria on the torus $\mathbb{T}^d \times \mathbb{R}^d$ that was first obtained by Mouhot and Villani in…

偏微分方程分析 · 数学 2022-07-18 Emmanuel Grenier , Toan T. Nguyen , Igor Rodnianski

Landau damping is the tendency of solutions to the Vlasov equation towards spatially homogeneous distribution functions. The distribution functions however approach the spatially homogeneous manifold only weakly, and Boltzmann entropy is…

流体动力学 · 物理学 2017-11-29 Michal Pavelka , Vaclav Klika , Miroslav Grmela

In this work, we consider the relativistic Vlasov-Maxwell system, linearized around a spatially homogeneous equilibrium, set in the whole space $\mathbb{R}^3 \times \mathbb{R}^3$. The equilibrium is assumed to belong to a class of radial,…

偏微分方程分析 · 数学 2024-02-20 Daniel Han-Kwan , Toan T. Nguyen , Frédéric Rousset

We study the linearized Vlasov equations and the linearized Vlasov-Fokker-Planck equations in the weakly collisional limit in a uniform magnetic field. In both cases, we consider periodic confinement and Maxwellian (or close to Maxwellian)…

偏微分方程分析 · 数学 2020-01-08 Jacob Bedrossian , Fei Wang

We present a novel method for solving the linearized Vlasov--Poisson equation, based on analyticity properties of the equilibrium and initial condition through Cauchy-type integrals, that produces algebraic expressions for the distribution…

等离子体物理 · 物理学 2023-07-05 Frank M. Lee , B. A. Shadwick

In this paper we discuss the dissipative property of near-equilibrium classical solutions to the Cauchy problem of the Vlasov-Maxwell-Boltzmann System in the whole space $\R^3$ when the positive charged ion flow provides a spatially uniform…

偏微分方程分析 · 数学 2011-07-12 Renjun Duan

The velocity-space resolution required to accurately simulate kinetic phenomena in the 1D-1V Vlasov--Poisson system is generally not known a priori. In this work, we determine the upper bound on the resolution requirement for linear and…

等离子体物理 · 物理学 2026-05-19 Noah K. Guberman , J. Coughlin , A. S. Joglekar

We analyse a reduced 1D Vlasov--Maxwell system introduced recently in the physical literature for studying laser-plasma interaction. This system can be seen as a standard Vlasov equation in which the field is split in two terms: an…

偏微分方程分析 · 数学 2016-08-16 José A. Carrillo , Simon Labrunie

We prove cyclotron damping for the collisionless Vlasov-Maxwell equations on $\mathbb{T}_{x}^{3}\times\mathbb{R}_{v}^{3}$ under the assumptions that the electric induction is zero and $(\mathcal{\mathbf{PSC}})$ holds. It is a crucial step…

偏微分方程分析 · 数学 2019-04-17 Xixia Ma

In this paper, we study the Vlasov-Poisson-Fokker-Planck (VPFP) equation with a small collision frequency $0 < \nu \ll 1$, exploring the interplay between the regularity and size of perturbations in the context of the asymptotic stability…

偏微分方程分析 · 数学 2024-02-27 Jacob Bedrossian , Weiren Zhao , Ruizhao Zi

We study Landau damping in the 1+1D Vlasov-Poisson system using a Fourier-Hermite spectral representation. We describe the propagation of free energy in phase space using forwards and backwards propagating Hermite modes recently developed…

等离子体物理 · 物理学 2015-05-20 J. T. Parker , P. J. Dellar

The paper treats the validity problem of the nonrelativistic Vlasov-Poisson equation in $d\geq 2$ dimensions. It is shown that the Vlasov-Poisson dynamics can be derived as a combined mean field and point-particle limit of an N-particle…

数学物理 · 物理学 2016-03-23 Dustin Lazarovici

A collisionless plasma is modeled by the Vlasov-Poisson system in one dimension. We consider the situation in which mobile negative ions balance a fixed background of positive charge, which is independent of space and time, as x tends to…

偏微分方程分析 · 数学 2010-03-01 Stephen Pankavich