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The paper is devoted to constructing the global solutions around global Maxwellians to the initial-boundary value problem on the Boltzmann equation in general bounded domains with isothermal diffuse reflection boundaries. We allow a class…

偏微分方程分析 · 数学 2018-11-14 Renjun Duan , Yong Wang

While there exist now formulations of initial boundary value problems for Einstein's field equations which are well posed and preserve constraints and gauge conditions, the question of geometric uniqueness remains unresolved. For two…

广义相对论与量子宇宙学 · 物理学 2009-09-28 Helmut Friedrich

Due to the space and time dependence of the wave function in the time dependent Schroedinger equation, different boundary conditions are possible. The equation is usually solved as an ``initial value problem'', by fixing the value of the…

量子物理 · 物理学 2017-02-16 A. D. Baute , I. L. Egusquiza , J. G. Muga

In this paper, we prove global well-posedness with large initial data for the one-dimensional quasilinear wave equation $$ u_{tt}=c(u)^2u_{xx}, \qquad (t,x)\in (0,T)\times\R, $$ where \(c\) is a positive, bounded, monotonically increasing…

偏微分方程分析 · 数学 2026-05-20 Yuusuke Sugiyama

We investigate the compressible magnetohydrodynamic equations subject to large external potential forces with discontinuous initial data in a three-dimensional bounded domain under Navier-slip boundary conditions. We show the global…

偏微分方程分析 · 数学 2025-12-23 Geyuan Chen , Xin Zhong

In this paper, we overview the recent progresses on the lifespan estimates of classical solutions of the initial value problems for nonlinear wave equations in one space dimension. There are mainly two directions of the developments on the…

偏微分方程分析 · 数学 2024-03-19 Hiroyuki Takamura

For a wave equation with pure delay, we study an inhomogeneous initial-boundary value problem in a bounded 1D domain. Under smoothness assumptions, we prove unique existence of classical solutions for any given finite time horizon and give…

偏微分方程分析 · 数学 2014-01-23 Denys Khusainov , Michael Pokojovy , Elvin Azizbayov

We investigate the initial-boundary value problem for one-dimensional compressible, heat-conductive, non-resistive MHD equations of viscous, ideal polytropic fluids in the Lagrangian coordinates. The existence and Lipschitz continuous…

偏微分方程分析 · 数学 2017-10-30 Yang Li , Yongzhong Sun

The classical system of shallow-water (Saint--Venant) equations describes long surface waves in an inviscid incompressible fluid of a variable depth. Although shock waves are expected in this quasilinear hyperbolic system for a wide class…

偏微分方程分析 · 数学 2016-03-16 Sergey N. Alexeenko , Marina V. Dontsova , Dmitry E. Pelinovsky

We establish existence and uniqueness results for the singular initial value problem associated with a class of quasilinear, symmetric hyperbolic, partial differential equations of Fuchsian type in several space dimensions. This is an…

广义相对论与量子宇宙学 · 物理学 2012-09-06 Ellery Ames , Florian Beyer , James Isenberg , Philippe G. LeFloch

We investigate the barotropic compressible Navier-Stokes equations with slip boundary conditions in a three-dimensional (3D) simply connected bounded domain, whose smooth boundary has a finite number of two-dimensional connected components.…

偏微分方程分析 · 数学 2025-04-23 Guocai Cai , Jing Li

This note aims at providing a rather informal and hopefully accessible overview of the fairly long and technical work [4]. In that paper, the authors established new global-in-time existence results for admissible solutions of nonlinear…

偏微分方程分析 · 数学 2024-05-06 Laura V. Spinolo , Fabio Ancona , Andrea Marson

We consider planar solutions to certain quasilinear elliptic equations subject to the Dirichlet boundary conditions; the boundary data is assumed to have finite number of relative maximum and minimum values. We are interested in certain…

偏微分方程分析 · 数学 2012-09-21 Seppo Granlund , Niko Marola

We prove the global classical solvability of initial-boundary problems for semilinear first-order hyperbolic systems subjected to local and nonlocal nonlinear boundary conditions. We also establish lower bounds for the order of nonlinearity…

偏微分方程分析 · 数学 2025-12-10 Irina Kmit

The paper is devoted to proving an existence and uniqueness result for generalized solutions to semilinear wave equations with a small nonlinearity in space dimensions 1, 2, 3. The setting is the one of Colombeau algebras of generalized…

偏微分方程分析 · 数学 2019-09-13 Hideo Deguchi , Michael Oberguggenberger

In this paper, we consider the initial-boundary problem for semilinear wave equation with a new condition $$\alpha \int_0^{u } f(s)ds \leq uf(u) + \beta u^2 +\alpha \sigma,$$ for some positive constants $\alpha$, $\beta$, and $\sigma$,…

偏微分方程分析 · 数学 2024-02-09 Bolys Sabitbek

We establish both global existence and decay properties for solutions with small data for a general class of coupled system of tensorial quasilinear hyperbolic wave equations in three space dimensions, that covers the dynamical Einstein…

偏微分方程分析 · 数学 2026-03-03 Sari Ghanem

This paper focuses on the initial- and boundary-value problem for the two-dimensional micropolar equations with only angular velocity dissipation in a smooth bounded domain. The aim here is to establish the global existence and uniqueness…

偏微分方程分析 · 数学 2017-09-20 Quansen Jiu , Jitao Liu , Jiahong Wu , Huan Yu

The initial boundary value problems for compressible Navier-Stokes-Poisson is considered on a bounded domain in $\mathbb{R}^3$ in this paper. The global existence of smooth solutions near a given steady state for compressible…

偏微分方程分析 · 数学 2021-04-07 Hairong Liu , Hua Zhong

This article concerns the time growth of Sobolev norms of classical solutions to the 3D quasi-linear wave equations with the null condition.

偏微分方程分析 · 数学 2015-10-13 Fan Wang