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A collisionless plasma is modeled by the Vlasov-Poisson system in three space dimensions. A fixed background of positive charge - dependant upon only velocity - is assumed. The situation in which mobile negative ions balance the positive…

偏微分方程分析 · 数学 2010-01-06 Stephen Pankavich

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

A collisionless plasma is modeled by the Vlasov-Poisson system in one-dimension. A fixed background of positive charge, dependent only upon velocity, is assumed and the situation in which the mobile negative ions balance the positive charge…

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

A multispecies, collisionless plasma is modeled by the Vlasov-Poisson system. Assuming that the electric field decays with sufficient rapidity as $t \to\infty$, we show that the velocity characteristics and spatial averages of the particle…

偏微分方程分析 · 数学 2022-01-25 Stephen Pankavich

A multispecies, collisionless plasma is modeled by the Vlasov-Poisson system. Assuming the plasma is neutral and the electric field decays with sufficient rapidity as $t \to\infty$, we show that solutions can be constructed with arbitrarily…

偏微分方程分析 · 数学 2025-02-06 Grace Mattingly , Stephen Pankavich , Jonathan Ben-Artzi

We study the large time behavior of classical solutions to the two-dimensional Vlasov-Poisson (VP) and relativistic Vlasov-Poisson (RVP) systems launched by radially-symmetric initial data with compact support. In particular, we prove that…

偏微分方程分析 · 数学 2022-09-20 Jonathan Ben-Artzi , Baptiste Morisse , Stephen Pankavich

The motion of a collisionless plasma is described by the Vlasov-Poisson system, or in the presence of large velocities, the relativistic Vlasov-Poisson system. Both systems are considered in one space and one momentum dimension, with two…

偏微分方程分析 · 数学 2010-03-01 Stephen Pankavich , Robert Glassey , Jack Schaeffer

We consider the classical and relativistic Vlasov-Poisson systems with spherically-symmetric initial data and prove the optimal decay rates for all suitable $L^p$ norms of the charge density and electric field, as well as, the optimal…

偏微分方程分析 · 数学 2021-06-15 Stephen Pankavich

When particle speeds are large the motion of a collisionless plasma is modeled by the relativistic Vlasov Maxwell system. Large time behavior of solutions which depend on one position variable and two momentum variables is considered. In…

偏微分方程分析 · 数学 2010-01-02 Robert Glassey , Stephen Pankavich , Jack Schaeffer

The Vlasov-Poisson system describes interacting systems of collisionless particles. For solutions with small initial data in three dimensions it is known that the spatial density of particles decays like $t^{-3}$ at late times. In this…

偏微分方程分析 · 数学 2007-05-23 Hyung Ju Hwang , Alan D. Rendall , Juan J. L. Velazquez

The behaviour of expanding cosmological models with collisionless matter and a positive cosmological constant is analysed. It is shown that under the assumption of plane or hyperbolic symmetry the area radius goes to infinity, the…

广义相对论与量子宇宙学 · 物理学 2009-11-10 S. B. Tchapnda , A. D. Rendall

The motion of a collisionless plasma - a high-temperature, low-density, ionized gas - is described by the Vlasov-Maxwell system. In the presence of large velocities, relativistic corrections are meaningful, and when symmetry of the particle…

偏微分方程分析 · 数学 2009-12-31 Robert Glassey , Stephen Pankavich , Jack Schaeffer

The time evolution of a two-component collisionless plasma is modeled by the Vlasov-Poisson system. In this work, the setting is two and one-half dimensional, that is, the distribution functions of the particles species are independent of…

数学物理 · 物理学 2021-12-01 Patrik Knopf , Jörg Weber

The one-dimensional Vlasov-Poisson system is considered and a particle method is developed to approximate solutions without compact support which tend to a fixed background of charge as $| x | \to \infty$. Such a system of equations can be…

数值分析 · 数学 2014-01-03 Stephen Pankavich

Some future global properties of cosmological solutions for the Einstein-Vlasov-Maxwell system with surface symmetry are presented. Global existence is proved, the homogeneous spacetimes are future complete for causal trajectories, and the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Sophonie Blaise Tchapnda

We consider the two-dimensional Vlasov-Poisson system to model a two-component plasma whose distribution function is constant with respect to the third space dimension. First, we show how this two-dimensional Vlasov-Poisson system can be…

数学物理 · 物理学 2021-10-12 Patrik Knopf

We study existence and uniqueness of the solution to the Vlasov-Poisson system describing a plasma constituted by different species evolving in $\mathbb{R}^3$, whose particles interact via the Coulomb potential. The species can have both…

数学物理 · 物理学 2019-12-03 Silvia Caprino , Guido Cavallaro , Carlo Marchioro

The asymptotic properties at future null infinity of the solutions of the relativistic Vlasov-Maxwell system whose global existence for small data has been established by the author in a previous work are investigated. These solutions…

数学物理 · 物理学 2015-06-26 Simone Calogero

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

As is well known from the work of R. Glassey} and J. Schaeffer, the main energy estimates which are used in global existence results for the gravitational Vlasov-Poisson system do not apply to the relativistic version of this system, and…

数学物理 · 物理学 2007-12-03 Mahir Hadzic , Gerhard Rein
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