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We prove a local existence and uniqueness result for the non-relativistic and relativistic Vlasov-Poisson system for data which need not even be continuous. The corresponding solutions preserve all the standard conserved quantities and are…

偏微分方程分析 · 数学 2021-11-19 Jacob Körner , Gerhard Rein

In this paper, we consider the existence (and nonexistence) of solutions to \[ -\mathcal{M}_{\lambda,\Lambda}^\pm (u'') + V(x) u = f(u) \quad {\rm in} \ \mathbf{R} \] where $\mathcal{M}_{\lambda,\Lambda}^+$ and…

偏微分方程分析 · 数学 2020-10-29 Patricio Felmer , Norihisa Ikoma

We consider the relativistic Vlasov-Maxwell system in three dimensions and study the limiting asymptotic behavior as $t \to \infty$ of solutions launched by small, compactly supported initial data. In particular, we prove that such…

偏微分方程分析 · 数学 2024-03-12 Stephen Pankavich , Jonathan Ben-Artzi

In this paper, under the hypothesis that $\rho$ is upper bounded, we construct a Lyapunov functional for the multidimensional isentropic compressible Navier-Stokes equations and show that the weak solutions decay exponentially to the…

偏微分方程分析 · 数学 2011-04-14 Daoyuan Fang , Ruizhao Zi , Ting Zhang

We consider solutions to linear parabolic equations with initial data decaying at spatial infinity. For a class of advection-diffusion equations with a spatially dependent velocity field, we study the behavior of solutions as time tends to…

偏微分方程分析 · 数学 2007-05-23 Oliver C. Schnürer , Hartmut R. Schwetlick

The present contribution investigates the dynamics generated by the two-dimensional Vlasov-Poisson-Fokker-Planck equation for charged particles in a steady inhomogeneous background of opposite charges. We provide global in time estimates…

偏微分方程分析 · 数学 2026-01-08 Maxime Herda , Luis Miguel Rodrigues

In this paper we analyze a nonlinear abstract evolution equation with an infinite number of time-dependent time delays and a Lipschitz continuous nonlinear term. By using a fixed point argument we prove the existence of a mild solution.…

偏微分方程分析 · 数学 2021-03-03 Alessandro Paolucci

We prove the global asymptotic stability of the Minkowski space for the massless Einstein-Vlasov system in wave coordinates. In contrast with previous work on the subject, no compact support assumptions on the initial data of the Vlasov…

偏微分方程分析 · 数学 2022-09-27 Léo Bigorgne , David Fajman , Jérémie Joudioux , Jacques Smulevici , Maximilian Thaller

Let $u$ solve the damped Klein--Gordon equation $$ \big( \partial_t^2-\sum \partial_{x_j}^2 +m \text{Id} +\gamma(x) \partial_t \big) u=0 $$ on $\mathbb{R}^n$ with $m>0$ and $\gamma\geq 0$ bounded below on a $2 \pi \mathbb{Z}^n$-invariant…

偏微分方程分析 · 数学 2016-08-22 Jared Wunsch

We consider a scalar, possibly degenerate parabolic equation with a source term, in several space dimensions. For initial data with bounded variation we prove the existence of solutions to the initial-value problem. Then we show that these…

偏微分方程分析 · 数学 2018-01-08 Giuseppe Coclite , Andrea Corli , Lorenzo di Ruvo

We study the asymptotic behavior of small data solutions to the screened Vlasov Poisson(i.e. Vlasov-Yukawa) equation on ${\mathbb R}\times{\mathbb R}$ near vacuum. We show that for initial data small in Gevrey-2 regularity, the derivative…

偏微分方程分析 · 数学 2024-11-22 Dongyi Wei

We prove existence and uniqueness results of positive viscosity solutions of fully nonlinear degenerate elliptic equations with power-like zero order perturbations in bounded domains. The principal part of such equations is either…

偏微分方程分析 · 数学 2019-07-24 Giulio Galise

This paper deals with the stability analysis of a nonlinear time-delayed dispersive equation of order four. First, we prove the well-posedness of the system and give some regularity results. Then, we show that the zero solution of the…

偏微分方程分析 · 数学 2020-07-27 Kaïs Ammari , Boumediène Chentouf , Nejib Smaoui

We prove the existence of a wide class of solutions to the isentropic relativistic Euler equations in 2 spacetime dimensions with an equation of state of the form $p=K\rho^2$ that have a fluid vacuum boundary. Near the fluid vacuum…

广义相对论与量子宇宙学 · 物理学 2013-10-11 Todd A. Oliynyk

In this paper, we study pointwise decay estimates in time for Vlasov fields on non-trapping asymptotically hyperbolic manifolds. We prove optimal decay estimates in time for the spatial density induced by Vlasov fields on these geometric…

偏微分方程分析 · 数学 2023-12-22 Anibal Velozo Ruiz , Renato Velozo Ruiz

In this paper, a compressible viscous-dispersive Euler system in one space dimension in the context of quantum hydrodynamics is considered. The purpose of this study is twofold. First, it is shown that the system is locally well-posed. For…

偏微分方程分析 · 数学 2023-09-04 Ramón G. Plaza , Delyan Zhelyazov

In the present paper, we propose the investigation of variable-exponent, degenerate/singular elliptic equations in non-divergence form. This current endeavor parallels the by now well established theory of functionals satisfying nonstandard…

偏微分方程分析 · 数学 2019-01-01 Anne C. Bronzi , Edgard A. Pimentel , Giane C. Rampasso , Eduardo V. Teixeira

In the present paper, we are concerned with the semilinear viscoelastic wave equation subject to a locally distributed dissipative effect of Kelvin-Voigt type, posed on a bounded domain with smooth boundary. We begin with an auxiliary…

We consider solutions of the repulsive Vlasov-Poisson system which are a combination of a point charge and a small gas, i.e.\ measures of the form $\delta_{(\mathcal{X}(t),\mathcal{V}(t))}+\mu^2d{\bf x}d{\bf v}$ for some $(\mathcal{X},…

偏微分方程分析 · 数学 2022-07-13 Benoit Pausader , Klaus Widmayer , Jiaqi Yang

In this paper, we prove the global existence of solutions to the relativistic Vlasov-Poisson system for general initial data in convex bounded domains of two space dimensions, assuming the specular reflection boundary conditions for the…

偏微分方程分析 · 数学 2025-11-11 Yanmin Mu , Dehua Wang