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相关论文: Poisson-Vlasov in a strong magnetic field: A stoch…

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In high-temperature plasma physics, a strong magnetic field is usually used to confine charged particles. Therefore, for studying the classical mathematical models of the physical problems it needs to consider the effect of external…

数值分析 · 数学 2025-09-05 Anjiao Gu , Yajuan Sun

A stochastic representation for the solutions of the Poisson-Vlasov equation is obtained. The representation involves both an exponential and a branching process. The stochastic representation, besides providing an alternative existence…

等离子体物理 · 物理学 2007-09-27 R. Vilela Mendes , Fernanda Cipriano

The construction of stochastic solutions is a powerful method to obtain localized solutions in configuration or Fourier space and for parallel computation with domain decomposition. Here a stochastic solution is obtained for the…

等离子体物理 · 物理学 2015-06-03 E. Floriani , R. Vilela Mendes

A stochastic representation for the solutions of the Poisson-Vlasov equation, with several charged species, is obtained. The representation involves both an exponential and a branching process and it provides an intuitive characterization…

等离子体物理 · 物理学 2010-08-31 Elena Floriani , R. Lima , R. Vilela Mendes

In high-temperature plasma physics, a strong magnetic field is usually used to confine charged particles. Therefore, for studying the classical mathematical models of the physical problems it is needed to consider the effect of external…

数值分析 · 数学 2023-10-11 Anjiao Gu , Yajuan Sun

In this paper, we consider the three dimensional Vlasov equation with an inhomogeneous, varying direction, strong magnetic field. Whenever the magnetic field has constant intensity, the oscillations generated by the stiff term are periodic.…

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

In the paper "Optimal control of a Vlasov-Poisson plasma by an external magnetic field - The basics for variational calculus" [arXiv:1708.02464] we have already introduced a set of admissible magnetic fields and we have proved that each of…

最优化与控制 · 数学 2017-10-27 Patrik Knopf

We study smooth, spherically-symmetric solutions to the Vlasov-Poisson system and relativistic Vlasov-Poisson system in the plasma physical case. We construct solutions that initially possess arbitrarily small C^k norms for the charge…

偏微分方程分析 · 数学 2019-10-15 Katherine Zhiyuan Zhang

We propose and analyze a class of particle methods for the Vlasov equation with a strong external magnetic field in a torus configuration. In this regime, the time step can be subject to stability constraints related to the smallness of…

数值分析 · 数学 2023-05-16 Francis Filbet , Luis Miguel Miguel Rodrigues

The linearized Vlasov equation for a plasma system in a uniform magnetic field and the corresponding linear Vlasov operator are studied. The spectrum and the corresponding eigenfunctions of the Vlasov operator are found. The spectrum of…

数学物理 · 物理学 2009-10-31 Biao Wu

Solutions of the linearized Vlasov-Poisson equations for the electric field radiated by a time varying point charge in a three-dimensional, unbounded, spatially homogeneous plasma with a uniform background magnetic field and a uniform…

等离子体物理 · 物理学 2015-06-04 John J. Podesta

In this paper, we construct unique, local-in-time strong solutions to the Vlasov-Poisson (VP) and Vlasov-Poisson-Fokker-Planck (VPFP) systems subjected to external, spatially regular, white-in-time electromagnetic fields in $\mathbb T^d…

偏微分方程分析 · 数学 2022-11-08 Jacob Bedrossian , Stavros Papathanasiou

We study smooth, spherically-symmetric solutions to the Vlasov-Poisson system and relativistic Vlasov-Poisson system in the plasma physical case. In particular, we construct solutions that initially possess arbitrarily small charge…

偏微分方程分析 · 数学 2023-12-05 Kaiwen Tan

We consider the three dimensional Vlasov-Poisson system that is equipped with an external magnetic field to describe a plasma. The aim of various concrete applications is to control a plasma in a desired fashion. This can be modeled by an…

偏微分方程分析 · 数学 2017-10-27 Patrik Knopf

Plasma instabilities are a major concern in plasma science, for applications ranging from particle accelerators to nuclear fusion reactors. In this work, we consider the possibility of controlling such instabilities by adding an external…

等离子体物理 · 物理学 2025-02-25 Lukas Einkemmer , Qin Li , Clément Mouhot , Yukun Yue

Two-dimensional Maxwell-Vlasov equilibria with finite electric fields, axial ("toroidal") plasma flow and isotropic pressure are constructed in plane geometry by using the quasineutrality condition to express the electrostatic potential in…

等离子体物理 · 物理学 2009-10-16 G. N. Throumoulopoulos , H. Tasso

We consider a stochastic differential equation for a charged particle in a stochastic magnetic field, known as A-Langevin equation. The solution of the equation is found, and the Lagrange velocity correlation function is calculated in…

混沌动力学 · 物理学 2007-05-23 D. Lesnik , S. Gordienko , M. Neuer , K. -H. Spatschek

We study the finite Larmor radius regime for the Vlasov-Poisson system. The magnetic field is assumed to be uniform. We investigate this non linear problem in the two dimensional setting. We derive the limit model by appealing to…

偏微分方程分析 · 数学 2015-11-03 Mihaï Bostan , Aurélie Finot , Maxime Hauray

We study the asymptotic behavior of solutions to the Vlasov equation in the presence of a strong external magnetic field. In particular we provide a mathematically rigorous derivation of the guiding-center approximation in the general three…

偏微分方程分析 · 数学 2020-02-26 Francis Filbet , Luis Miguel Rodrigues
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