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We consider the three dimensional gravitational Vlasov Poisson system which describes the mechanical state of a stellar system subject to its own gravity. A well-known conjecture in astrophysics is that the steady state solutions which are…

偏微分方程分析 · 数学 2010-03-05 Mohammed Lemou , Florian Mehats , Pierre Raphael

Equilibrium states in galactic dynamics can be described as stationary solutions of the Vlasov-Poisson system, which is the non-relativistic case, or of the Vlasov-Einstein system, which is the relativistic case. To obtain spherically…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Gerhard Rein , Alan D. Rendall

It is well known that steady states of the Vlasov-Poisson system, a widely used model in non-relativistic galactic dynamics, have negative energy. In this paper we derive the analogous property for two relativistic generalizations of the…

数学物理 · 物理学 2015-05-14 Simone Calogero , Juan Calvo , Óscar Sánchez , Juan Soler

We consider the Vlasov--Poisson system both in the repulsive (electrostatic potential) and in the attractive (gravitational potential) cases. In our first main theorem, we prove the uniqueness and the quantitative stability of Lagrangian…

偏微分方程分析 · 数学 2023-06-02 Gianluca Crippa , Marco Inversi , Chiara Saffirio , Giorgio Stefani

A fermion ground state energy functional is set up in terms of particle density, relative pair density, and kinetic energy tensor density. It satisfies a minimum principle if constrained by a complete set of compatibility conditions. A…

化学物理 · 物理学 2009-10-17 Bin Liu , Jerome K. Percus

Forty-five years after the point de d\'epart [1] of density functional theory, its applications in chemistry and the study of electronic structures keep steadily growing. However, the precise form of the energy functional in terms of the…

化学物理 · 物理学 2019-10-29 Philippe Blanchard , José M. Gracia-Bondía , Joseph C. Várilly

This paper mainly investigates several limit properties of normalized solutions for the fractional Schr\"{o}dinger-Poisson system, including existence, concentration behaviors and local uniqueness. It is worth noting that our results on the…

偏微分方程分析 · 数学 2026-03-17 Lintao Liu , Haidong Yang

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

In this work, we study the orbital stability of steady states and the existence of blow-up self-similar solutions to the so-called Vlasov-Manev (VM) system. This system is a kinetic model which has a similar Vlasov structure as the…

偏微分方程分析 · 数学 2012-11-15 Mohammed Lemou , Florian Méhats , Cyril Rigault

We develop a general stability theory for equilibrium points of Poisson dynamical systems and relative equilibria of Hamiltonian systems with symmetries, including several generalisations of the Energy-Casimir and Energy-Momentum methods.…

动力系统 · 数学 2007-05-23 George W. Patrick , Mark Roberts , Claudia Wulff

Thermodynamical arguments are known to be useful in the construction of physically motivated Lyapunov functionals for nonlinear stability analysis of spatially homogeneous equilibrium steady states in thermodynamically isolated systems.…

统计力学 · 物理学 2019-08-06 Miroslav Bulíček , Josef Málek , Vít Průša

We compute the one-loop Casimir energy of gravity and matter fields, obeying various boundary conditions, in 5-dimensional S^1/Z_2 and 6-dimensional T^2/Z_k orbifolds. We discuss the role of the Casimir energy in possible radius…

高能物理 - 唯象学 · 物理学 2010-05-28 Eduardo Ponton , Erich Poppitz

Energy conserving particle-in-cell schemes are constructed for a class of reduced relativistic Vlasov--Maxwell equations of laser-plasma interaction. Discrete Poisson equation is also satisfied by the numerical solution. Specifically,…

数值分析 · 数学 2022-11-30 Yingzhe Li

Well balanced and free energy dissipative first- and second-order accurate finite volume schemes are proposed for a general class of hydrodynamic systems with linear and nonlinear damping. The natural Liapunov functional of the system,…

数值分析 · 数学 2020-11-05 José A. Carrillo , Serafim Kalliadasis , Sergio P. Perez , Chi-Wang Shu

We examine the Casimir energy of 5D electromagnetism in the recent standpoint. The bulk geometry is flat. Z$_2$ symmetry and the periodic property, for the extra coordinate, are taken into account. After confirming the consistency with the…

高能物理 - 理论 · 物理学 2009-08-05 Shoichi Ichinose

We prove that the electron density function of a real physical system can be uniquely determined by its values on any finite subsystem. This establishes the existence of a rigorous density-functional theory for any open electronic system.…

量子物理 · 物理学 2007-05-23 Xiao Zheng , Fan Wang , GuanHua Chen

We study the nonlinear stability of a large class of inhomogeneous steady state solutions to the Hamiltonian Mean Field (HMF) model. Under a simple criterion, we prove the nonlinear stability of steady states which are decreasing functions…

偏微分方程分析 · 数学 2015-09-30 Mohammed Lemou , Ana Maria Luz , Florian Mehats

Energy conservations are studied for inhomogeneous incompressible and compressible Euler equations with general pressure law in a torus or a bounded domain. We provide sufficient conditions for a weak solution to conserve the energy. By…

偏微分方程分析 · 数学 2019-09-23 Quoc-Hung Nguyen , Phuoc-Tai Nguyen , Bao Quoc Tang

We present a method for determining the local stability of equilibrium points of conservative generalizations of the Lotka-Volterra equations. These generalizations incorporate both an arbitrary number of species -including odd-dimensional…

动力系统 · 数学 2019-11-04 Benito Hernández-Bermejo , Victor Fairén

The action principle by Low [Proc. R. Soc. Lond. A 248, 282--287] for the classic Vlasov-Maxwell system contains a mix of Eulerian and Lagrangian variables. This renders the Noether analysis of reparametrization symmetries inconvenient,…

等离子体物理 · 物理学 2020-04-30 Eero Hirvijoki , Joshua W. Burby , David Pfefferlé , Alain J. Brizard