中文
相关论文

相关论文: Two-dimensional Finite Larmor Radius approximation…

200 篇论文

The exact solution of a system of bilinear identities derived in the first part of our work [Nucl.Phys.A 938 (2015) 59] for the case of real Grassmann-odd tensor aggregate of the type $(S,V_{\mu},\!\,^{\ast}T_{\mu \nu},A_{\mu}, P)$ is…

高能物理 - 理论 · 物理学 2016-05-26 Yuri A. Markov , Margarita A. Markova

We prove that polynomial velocity moments of solutions to the 2D magnetized Vlasov-Poisson system and the 3D magnetized screened Vlasov-Poisson equation remain finite for all times, provided they are finite initially, even when the external…

偏微分方程分析 · 数学 2025-10-28 Immanuel Ben Porat , Antoine Gagnebin , Mikaela Iacobelli , Jonathan Junné

This paper establishes the long time asymptotic limit of the three dimensional Vlasov-Poisson equation with strong external magnetic field. The guiding center approximation is investigated in the three dimensional case with a non-constant…

偏微分方程分析 · 数学 2016-11-23 Pierre Degond , Francis Filbet

In this paper, we prove the global existence of solutions to the relativistic Vlasov-Poisson system for general initial data in convex bounded domains of two space dimensions, assuming the specular reflection boundary conditions for the…

偏微分方程分析 · 数学 2025-11-11 Yanmin Mu , Dehua Wang

We address the existence of stationary solutions of the Vlasov-Poisson system on a domain $\Omega\subset\mathbb{R}^3$ describing a high-temperature plasma which due to the influence of an external magnetic field is spatially confined to a…

偏微分方程分析 · 数学 2021-05-25 Yulia O. Belyaeva , Björn Gebhard , Alexander L. Skubachevskii

We study a class of spatial discretizations for the Vlasov-Poisson system written as an hyperbolic system using Hermite polynomials. In particular, we focus on spectral methods and discontinuous Galerkin approximations. To obtain L 2…

数值分析 · 数学 2022-01-05 Marianne Bessemoulin-Chatard , Francis Filbet

For a class of arbitrary large initial data with radial symmetry or cylindrical symmetry, we prove the existence of global solutions for the $3D$ relativistic Vlasov-Poisson system for the plasma physics case. The compact support assumption…

偏微分方程分析 · 数学 2022-03-03 Xuecheng Wang

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 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 an efficient semi-Lagrangian characteristic mapping method for solving the one+one-dimensional Vlasov-Poisson equations with high precision on a coarse grid. The flow map is evolved numerically and exponential resolution in…

数值分析 · 数学 2024-05-14 Philipp Krah , Xi-Yuan Yin , Julius Bergmann , Jean-Christophe Nave , Kai Schneider

This paper introduces a mathematical framework for explicit structural dynamics, employing approximate dual functionals and rowsum mass lumping. We demonstrate that the approach may be interpreted as a Petrov-Galerkin method that utilizes…

We propose a novel derivation of the gyrokinetic field-particle Lagrangian for non-collisional ion-electron plasmas in a magnetic background with strong variations (maximal ordering). Our approach follows the two-step reduction process,…

等离子体物理 · 物理学 2019-09-12 Edoardo Zoni , Stefan Possanner

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

We study well-posedness and long time behavior of the nonlinear Vlasov-Poisson- Fokker-Planck system with an external confining potential. The system describes the time evolution of particles (e.g.$\,\,$in a plasma) undergoing diffusion,…

偏微分方程分析 · 数学 2024-06-24 Gayrat Toshpulatov

In this article, we study a collisionless kinetic model for plasmas in the neighborhood of a cylindrical metallic Langmuir probe. This model consists in a bi-species Vlasov-Poisson equation in a domain contained between two cylinders with…

偏微分方程分析 · 数学 2022-02-11 Mehdi Badsi , Ludovic Godard-Cadillac

We consider the Vlasov-Poisson-Landau system, a classical model for a dilute collisional plasma interacting through Coulombic collisions and with its self-consistent electrostatic field. We establish global stability and well-posedness near…

偏微分方程分析 · 数学 2022-01-19 Hongjie Dong , Yan Guo , Zhimeng Ouyang

Two-dimensional gyrokinetics is a simple paradigm for the study of kinetic magnetised plasma turbulence. In this paper, we present a comprehensive theoretical framework for this turbulence. We study both the inverse and direct cascades (the…

等离子体物理 · 物理学 2015-05-13 G. G. Plunk , S. C. Cowley , A. A. Schekochihin , T. Tatsuno

In this work, we develop and rigorously analyze a new class of particle methods for the magnetized Vlasov--Poisson--Fokker--Planck system. The proposed approach addresses two fundamental challenges: (1) the curse of dimensionality, which we…

数值分析 · 数学 2025-03-03 Anjiao Gu , Xiaojiang Zhang

The reduced-particle model is the central element for the systematic derivation of the gyrokinetic Vlasov-Maxwell equations from first principles. Coupled to the fields inside the gyrokinetic field-particle Lagrangian, the reduced-particle…

等离子体物理 · 物理学 2017-05-24 Natalia Tronko , A Bottino , Cristel Chandre , E Sonnendruecker

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