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相关论文: Existence and stability of static shells for the V…

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The purpose of this paper is to mathematically investigate the formation of a plasma sheath near the surface of walls immersed in a plasma, and to analyze qualitative information of such a sheath layer. In the case of planar wall, Bohm…

偏微分方程分析 · 数学 2020-10-01 Masahiro Suzuki , Masahiro Takayama

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

The Cauchy problem is revisited for the so-called relativistic Vlasov-Poisson system in the attractive case. Global existence and uniqueness of spherical classical solutions is proved under weaker assumptions than previously used. A new…

数学物理 · 物理学 2009-02-06 Michael K. -H. Kiessling , A. Shadi Tahvildar-Zadeh

Existence of spherically symmetric solutions to the Einstein-Vlasov system is well-known. However, it is an open problem whether or not static solutions arise as minimizers of a variational problem. Apart from being of interest in its own…

广义相对论与量子宇宙学 · 物理学 2024-02-19 Håkan Andréasson , Markus Kunze

We show future global non-linear stability of surface symmetric solutions of the Einstein-Vlasov system with a positive cosmological constant. Estimates of higher derivatives of the metric and the matter terms are obtained using an…

数学物理 · 物理学 2024-06-18 Ernesto Nungesser

The stability features of steady states of the spherically symmetric Einstein-Vlasov system are investigated numerically. We find support for the conjecture by Zeldovich and Novikov that the binding energy maximum along a steady state…

广义相对论与量子宇宙学 · 物理学 2009-11-11 Hakan Andreasson , Gerhard Rein

We propose two models for constant density relativistic perfect-fluid spheres supported by thin shell configurations. These models are obtained from the Schwarzschild constant density star solution: the first via the collapse of the…

广义相对论与量子宇宙学 · 物理学 2020-09-16 João Luís Rosa , Pedro Piçarra

We prove in the cases of spherical, plane and hyperbolic symmetry a local in time existence theorem and continuation criteria for cosmological solutions of the Einstein-Vlasov-scalar field system, with the sources generated by a…

广义相对论与量子宇宙学 · 物理学 2007-05-23 David Tegankong , Norbert Noutchegueme , Alan D. Rendall

We prove the existence of stationary solutions for the density of an infinitely extended plasma interacting with an arbitrary configuration of background charges. Furthermore, we show that the solution cannot be unique if the total charge…

偏微分方程分析 · 数学 2023-01-24 Raphael Winter

The main concern of this paper is to mathematically investigate the formation of a plasma sheath near the surface of nonplanar walls. We study the existence and asymptotic stability of stationary solutions for the nonisentropic…

偏微分方程分析 · 数学 2024-03-13 Mingjie Li , Masahiro Suzuki

Local existence and well posedness for a class of solutions for the Euler Poisson system is shown. These solutions have a density $\rho$ which either falls off at infinity or has compact support. The solutions have finite mass, finite…

偏微分方程分析 · 数学 2017-09-26 Uwe Brauer , Lavi Karp

This paper investigates the stability of traveling wave solutions to the free boundary Euler equations with a submerged point vortex. We prove that sufficiently small-amplitude waves with small enough vortex strength are conditionally…

偏微分方程分析 · 数学 2019-07-30 Kristoffer Varholm , Erik Wahlén , Samuel Walsh

We study smooth, global-in-time solutions of the relativistic Vlasov-Maxwell system that possess arbitrarily large charge densities and electric fields. In particular, we construct spherically symmetric solutions that describe a thin shell…

数学物理 · 物理学 2018-07-10 Jonathan Ben-Artzi , Simone Calogero , Stephen Pankavich

In this paper we study static spherically symmetric Einstein-Vlasov shells, made up of equal mass particles, where the angular momentum L of particles takes values only on a discrete finite set. We consider first the case where there is…

广义相对论与量子宇宙学 · 物理学 2010-02-25 Reinaldo J. Gleiser , Marcos A. Ramirez

Axisymmetric and stationary solutions are constructed to the Einstein--Vlasov and Vlasov--Poisson systems. These solutions are constructed numerically, using finite element methods and a fixed-point iteration in which the total mass is…

广义相对论与量子宇宙学 · 物理学 2018-04-11 Ellery Ames , Håkan Andréasson , Anders Logg

The results on local existence and continuation criteria obtained by G. Rein in [4] are extended to the case with a non-zero cosmological constant. It is also shown that for the spherically symmetric case and a positive cosmological…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Sophonie Blaise Tchapnda , Norbert Noutchegueme

Motivated by the stellar wind ejected from the upper atmosphere (Corona) of a star, we explore a boundary problem of the two-species nonlinear relativistic Vlasov-Poisson systems in the 3D half space in the presence of a constant vertical…

偏微分方程分析 · 数学 2024-09-04 Jiaxin Jin , Chanwoo Kim

We revisit the classical thermodynamic stability of the standard black hole solutions by implementing the intrinsic necessary and sufficient conditions for stable global and local thermodynamic equilibrium. The criteria for such equilibria…

广义相对论与量子宇宙学 · 物理学 2024-12-30 V. Avramov , H. Dimov , M. Radomirov , R. C. Rashkov , T. Vetsov

Using direct methods of the calculus of variations we establish the existence of an infinite class of spherically-symmetric solutions to the multi-field Schr\"odinger-Poisson system. This is achieved by proving that the energy functional…

数学物理 · 物理学 2026-05-29 Emmanuel Chávez Nambo , Olivier Sarbach

We present new results concerning the existence of static, electrically charged, perfect fluid spheres that have a regular interior and are arbitrarily close to a maximally charged black-hole state. These configurations are described by…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Fernando de Felice , Liu Siming , Yu Yunqiang