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We numerically analyse solutions of the spherically symmetric gravitational Vlasov-Poisson system close to compactly supported stable steady states. We observe either partially undamped oscillations or macroscopically damped solutions. We…

Astrophysics of Galaxies · Physics 2024-09-24 Christopher Straub

We develop a method to compute scattering amplitudes for the Helmholtz equation in variable, unbounded media with possibly long-range asymptotics. Combining Penrose's conformal compactification and Melrose's geometric scattering theory, we…

Numerical Analysis · Mathematics 2026-01-08 Anıl Zenginoğlu

We establish the global-in-time existence of solutions of finite relative-energy for the multidimensional compressible Euler-Poisson equations for plasma with doping profile for large initial data of spherical symmetry. Both the total…

Analysis of PDEs · Mathematics 2023-09-07 Gui-Qiang G. Chen , Lin He , Yong Wang , Difan Yuan

We investigate the nonlinear stability of the superposition of a viscous contact wave and two rarefaction waves for one-dimensional bipolar Vlasov-Poisson-Boltzmann (VPB) system, which can be used to describe the transportation of charged…

Analysis of PDEs · Mathematics 2017-10-10 Hailiang Li , Teng Wang , Yi Wang

In this paper we prove the existence of a large class of periodic solutions of the Vlasov-Poisson in one space dimension that decay exponentially as t goes to infinity. The exponential decay is well known for the linearized version of the…

Analysis of PDEs · Mathematics 2008-10-28 Hyung Ju Hwang , Juan J. L. Velazquez

This paper concerns with the large-time behaviors of the viscous shock profile and rarefaction wave under initial perturbations which tend to space-periodic functions at infinities for the one-dimensional compressible Navier-Stokes-Poisson…

Analysis of PDEs · Mathematics 2023-08-31 Yeping Li , Yu Mei , Yuan Yuan

We investigate the stability of plane wave solutions of equations describing quantum particles interacting with a complex environment. The models take the form of PDE systems with a non local (in space or in space and time) self-consistent…

Analysis of PDEs · Mathematics 2023-10-24 Thierry Goudon , Simona Rota Nodari

Collisional effects can play an essential role in the dynamics of plasma waves by setting a minimum damping rate and by interfering with wave-particle resonances. Kinetic simulations of the effects of electron-ion pitch angle scattering on…

Plasma Physics · Physics 2016-03-23 J. W. Banks , S. Brunner , R. L. Berger , T. M. Tran

In this paper, we establish the large time asymptotic behavior of solutions to the linearized Vlasov-Poisson system near general spatially homogenous equilibria $\mu(\frac12|v|^2)$ with connected support on the torus $\mathbb{T}^3_x \times…

Analysis of PDEs · Mathematics 2026-01-12 Toan T. Nguyen

Using both numerical and analytical tools we study various features of static, spherically symmetric solutions of the Einstein-Vlasov system. In particular, we investigate the possible shapes of their mass-energy density and find that they…

General Relativity and Quantum Cosmology · Physics 2008-11-26 Hakan Andreasson , Gerhard Rein

The present paper is devoted to the convergence analysis of a class of asymptotic preserving particle schemes [Filbet \& Rodrigues, SIAM J. Numer. Anal., 54 (2) (2016)] for the Vlasov equation with a strong external magnetic field. In this…

Numerical Analysis · Mathematics 2020-03-23 Francis Filbet , Luis Miguel Rodrigues , Hamed Zakerzadeh

Motivated by recent results of Lemou-M\'ehats-R\"aphael and Lemou concerning the quatitative stability of some suitable steady states for the Vlasov-Poisson system, we investigate the local uniqueness of steady states near these one. This…

Analysis of PDEs · Mathematics 2023-07-07 Mikaela Iacobelli

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…

Analysis of PDEs · Mathematics 2023-06-02 Gianluca Crippa , Marco Inversi , Chiara Saffirio , Giorgio Stefani

We give a new proof for the existence of spherically symmetric steady states to the Vlasov-Poisson system, following a strategy that has been used successfully to approximate axially symmetric solutions numerically, both to the…

Analysis of PDEs · Mathematics 2025-08-04 Håkan Andréasson , Markus Kunze , Gerhard Rein

A fundamental two-fluid model for describing dynamics of a plasma is the Euler-Poisson system, in which compressible ion and electron fluids interact with their self-consistent electrostatic force. Global smooth electron dynamics were…

Mathematical Physics · Physics 2015-05-18 Yan Guo , Benoit Pausader

This article is devoted to the kinetic description in phase space of magnetically confined plasmas. It addresses the problem of stability near equilibria of the Relativistic Vlasov Maxwell system. We work under the Glassey-Strauss compactly…

Analysis of PDEs · Mathematics 2021-03-16 Christophe Cheverry , Slim Ibrahim , Dayton Preissl

The very long standing problem of sound waves propagation in fluids is reexamined. In particular, from the analysis of the wave damping in reacting gases following the work of Einsten \citep{Ein}, it is found that the damping due to the…

Plasma Physics · Physics 2021-05-13 Miguel H. Ibáñez S. , Pedro L. Contreras E

The Vlasov-Poisson system is widely used in plasma physics and other related fields. In this paper, we study the Vlasov-Poisson system with initial uncertainty in the quasineutral regime. First, we prove the uniform convergence in the…

Analysis of PDEs · Mathematics 2025-12-16 Wenyi Wang , Yiwen Lin

This paper is concerned with the inflow problem for the one-dimensional compressible Navier-Stokes equations. For such a problem, F. M. Huang, A. Matsumura and X. D. Shi showed that there exists viscous shock wave solution to the inflow…

Analysis of PDEs · Mathematics 2015-06-23 Dongfen Bian , Lili Fan , Lin He , Huijiang Zhao

We consider plasmonic metasurfaces constituted by an arbitrary periodic arrangement of spherical metallic nanoparticles. Each nanoparticle supports three degenerate dipolar localized surface plasmon (LSP) resonances. In the regime where the…

Mesoscale and Nanoscale Physics · Physics 2020-07-23 François Fernique , Guillaume Weick