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相关论文: Quasineutral limit for Vlasov-Poisson via Wasserst…

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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

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

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

We present a probabilistic proof of the mean field limit and propagation of chaos $N$-particle systems in three dimensions with positive (Coulomb) or negative (Newton) $1/r$ potentials scaling like $1/N$ and an $N$-dependent cut-off which…

数学物理 · 物理学 2016-06-02 Dustin Lazarovici , Peter Pickl

The quasi-neutral limit of the Navier-Stokes-Poisson system modeling a viscous plasma with vanishing viscosity coefficients in the half-space $\mathbb{R}^{3}_{+}$ is rigorously proved under a Navier-slip boundary condition for velocity and…

偏微分方程分析 · 数学 2022-07-19 Qiangchang Ju , Tao Luo , Xin Xu

We study the instability of solutions to the relativistic Vlasov-Maxwell systems in two limiting regimes: the classical limit when the speed of light tends to infinity and the quasineutral limit when the Debye length tends to zero. First,…

偏微分方程分析 · 数学 2017-07-20 Daniel Han-Kwan , Toan T. Nguyen

Following Fr\'enod and Sonnendr\"ucker, we consider the finite Larmor radius regime for a plasma submitted to a large magnetic field and take into account both the quasineutrality and the local thermodynamic equilibrium of the electrons. We…

偏微分方程分析 · 数学 2010-02-10 Daniel Han-Kwan

We consider the three-dimensional semi-relativistic Hartree model for fast quantum mechanical particles moving in a self-consistent field. Under appropriate assumptions on the initial density matrix as a (fully) mixed quantum state we…

数学物理 · 物理学 2009-11-13 Gonca L. Aki , Peter A. Markowich , Christof Sparber

In this paper, we study the quasineutral limit and asymptotic behaviors for the quantum Navier-Stokes-Possion equation. We apply a formal expansion according to Debye length and derive the neutral incompressible Navier-Stokes equation. To…

数学物理 · 物理学 2017-06-23 Min Li , Xueke Pu , Shu Wang

In this paper, we study the Vlasov-Maxwell system in the non-relativistic limit, that is in the regime where the speed of light is a very large parameter. We consider data lying in the vicinity of homogeneous equilibria that are stable in…

偏微分方程分析 · 数学 2018-08-15 Daniel Han-Kwan , Toan T. Nguyen , Frederic Rousset

We consider a special case of the three dimensional Vlasov-Poisson system where the particles are restricted to a plane, a situation that is used in astrophysics to model extremely flattened galaxies. We prove the existence of steady states…

数学物理 · 物理学 2009-10-31 Gerhard Rein

We give improved bounds for the distortion of the Hausdorff dimension under quasisymmetric maps in terms of the dilatation of their quasiconformal extension. The sharpness of the estimates remains an open question and is shown to be closely…

复变函数 · 数学 2011-10-25 István Prause , Stanislav Smirnov

This paper is devoted to the study of the nonlinear stability of the rarefaction waves of the Vlasov-Poisson-Boltzmann system with slab symmetry in the case where the electron background density satisfies an analogue of the Boltzmann…

偏微分方程分析 · 数学 2014-05-13 Renjun Duan , Shuangqian Liu

In this paper we establish almost-optimal stability estimates in quantum optimal transport pseudometrics for the semiclassical limit of the Hartree dynamics to the Vlasov-Poisson equation, in the regime where the solutions have bounded…

偏微分方程分析 · 数学 2024-12-02 Mikaela Iacobelli , Laurent Lafleche

This paper deals with the combined incompressible quasineutral limit of the weak martingale solution of the compressible Navier-Stokes-Poisson system perturbed by a stochastic forcing term in the whole space. In the framework of…

偏微分方程分析 · 数学 2020-08-21 Donatella Donatelli , Prince Romeo Mensah

We review some uniqueness criteria for the Vlasov--Poisson system, emerging as corollaries of stability estimates in strong or weak topologies, and show how they serve as a guideline to solve problems arising in semiclassical analysis.…

偏微分方程分析 · 数学 2024-10-03 Laurent Lafleche , Chiara Saffirio

We investigate the distortion of the Assouad dimension and (regularized) spectrum of sets under planar quasiregular maps. While the respective results for the Hausdorff and upper box-counting dimension follow immediately from their…

复变函数 · 数学 2024-11-18 Efstathios Konstantinos Chrontsios Garitsis

We study the asymptotic behavior of small data solutions to the screened Vlasov-Poisson equation on $\mathbb{R}^d\times\mathbb{R}^d$ near vacuum. We show that for dimensions $d\geq 2$, under mild assumptions on localization (in terms of…

偏微分方程分析 · 数学 2026-03-04 Mikaela Iacobelli , Stefano Rossi , Klaus Widmayer

Certain steady states of the Vlasov-Poisson system can be characterized as minimizers of an energy-Casimir functional, and this fact implies a nonlinear stability property of such steady states. In previous investigations by Y. Guo and the…

数学物理 · 物理学 2009-10-31 Gerhard Rein

We prove a stability result of constant equilibria for the three-dimensional Navier-Stokes-Poisson system uniform in the inviscid limit. We allow the initial density to be close to a constant and the potential part of the initial velocity…

偏微分方程分析 · 数学 2020-11-17 Frédéric Rousset , Changzhen Sun