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This paper presents a systematic study of the properties of non-rotating stellar models governed by the Euler-Poisson system under general equations of state, including the case of polytropic gaseous stars. We revisit and extend existence…

偏微分方程分析 · 数学 2026-04-22 Hangsheng Chen

We consider a family of isolated inhomogeneous steady states to the gravitational Vlasov-Poisson system with a point mass at the centre. They are parametrised by the polytropic index $k>1/2$, so that the phase space density of the steady…

偏微分方程分析 · 数学 2025-07-23 Mahir Hadzic , Gerhard Rein , Matthew Schrecker , Christopher Straub

We explore the classical stability of topological black holes in d-dimensional anti-de Sitter spacetime, where the horizon is an Einstein manifold of negative curvature. According to the gauge invariant formalism of Ishibashi and Kodama,…

高能物理 - 理论 · 物理学 2008-11-26 Danny Birmingham , Susan Mokhtari

The classical model of an isolated selfrgavitating gaseous star is given by the Euler-Poisson system with a polytropic pressure law $P(\rho)=\rho^\gamma$, $\gamma>1$. For any $1<\gamma<\frac43$, we construct an infinite-dimensional family…

偏微分方程分析 · 数学 2018-11-06 Yan Guo , Mahir Hadzic , Juhi Jang

The Sagdeev pseudo-potential approach has been employed extensively in theoretical studies to determine large-amplitude (fully) nonlinear solutions in a variety of multi-species plasmas. Although these solutions are repeatedly considered as…

等离子体物理 · 物理学 2018-06-20 S. M. Hosseini Jenab , F. Spanier , G. Brodin

The Vlasov-Maxwell-Boltzmann system is a fundamental model to describe the dynamics of dilute charged particles, where particles interact via collisions and through their self-consistent electromagnetic field. We prove the existence of…

偏微分方程分析 · 数学 2010-05-02 Robert M. Strain

We study the existence and radial stability of static, spherically symmetric thin shells separating two Schwarzschild--de Sitter spacetimes with parameters $(m_\pm,\Lambda_\pm)$. Using the Israel junction formalism and a linear barotropic…

广义相对论与量子宇宙学 · 物理学 2026-02-26 Dimitrios Efstratiou , Evangelos Achilleas Paraskevas , Leandros Perivolaropoulos

The existence of stationary solutions of the Einstein-Vlasov-Maxwell system which are axially symmetric but not spherically symmetric is proven by means of the implicit function theorem on Banach spaces. The proof generalises the methods of…

广义相对论与量子宇宙学 · 物理学 2020-01-29 Maximilian Thaller

The dynamics of collisionless galaxy can be described by the Vlasov-Poisson system. By the Jean's theorem, all the spherically symmetric steady galaxy models are given by a distribution of {\Phi}(E,L), where E is the particle energy and L…

星系天体物理 · 物理学 2013-03-13 Zhiyu Wang , Yan Guo , Zhiwu Lin , Pingwen Zhang

In this work, we consider the smoothing effect of Vlasov-Poisson-Landau system for both hard and soft potential. In particular, we prove that any classical solutions becomes immediately smooth with respect to all variables. We also give a…

偏微分方程分析 · 数学 2024-02-08 Dingqun Deng

This review presents an upgraded wave theory adapted to the high fluctuation level of driven realistic i.e. non-idealized plasmas. Above all, this means giving up the well-known concept of a linear wave theory in favor of a thoroughly…

等离子体物理 · 物理学 2022-05-18 Hans Schamel

In this paper, we study the well-posedness of Poisson-Nernst-Planck system with no-flux boundary condition and singular permanent charges in two dimension. The main difficulty comes from the lack of integrability of singular permanent…

偏微分方程分析 · 数学 2021-10-14 Chia-Yu Hsieh , Yong Yu

We analyze the stability of stationary solutions of a singular Vlasov type hydrodynamic equation (HE). This equation was derived (under suitable assumptions) as the hydrodynamical scaling limit of the Hamiltonian evolution of a system…

统计力学 · 物理学 2009-11-10 E. Caglioti , N. Chernov , J. L. Lebowitz

Due to R. Beig and W. Simon (1990) there is a uniqueness theorem for static solutions of the Einstein-Euler system which applies to fluid models whose equation of state fulfills certain conditions. In this article it is shown that this…

广义相对论与量子宇宙学 · 物理学 2018-07-09 Tomohiro Harada , Maximilian Thaller

We prove existence of static solutions to the cylindrically symmetric Einstein-Vlasov system, and we show that the matter cylinder has finite extension. The same results are also proved for a quite general class of equations of state for…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Mikael Fjallborg

We prove a large-data semi-global existence theorem and the dynamical formation of trapped surfaces for the Einstein-massless Vlasov system in 3+1 dimensions, without any symmetry assumptions. The analysis critically hinges on a finely…

偏微分方程分析 · 数学 2025-10-15 Nikolaos Athanasiou , Puskar Mondal , Shing-Tung Yau

In this paper we provide sharp criteria for linear stability or instability of equilibria of collisionless plasmas in the presence of boundaries. Specifically, we consider the relativistic Vlasov-Maxwell system with specular reflection at…

偏微分方程分析 · 数学 2011-12-21 Toan Nguyen , Walter A. Strauss

We show non-linear stability and instability results in spherical symmetry for the interior of a charged black hole -approaching a sub-extremal Reissner-Nordstr\"om background fast enough at infinity- in presence of a massive and charged…

广义相对论与量子宇宙学 · 物理学 2018-03-14 Maxime Van de Moortel

We prove asymptotic stability of the Poisson homogeneous equilibrium among solutions of the Vlassov-Poisson system in the Euclidean space $\mathbb{R}^3$. More precisely, we show that small, smooth, and localized perturbations of the Poisson…

偏微分方程分析 · 数学 2024-01-30 Alexandru Ionescu , Benoit Pausader , Xuecheng Wang , Klaus Widmayer

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