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This work concerns the global existence of the weak solutions to a system of partial differential equations modeling the evolution of particles in the fluid. That system is given by a coupling between the standard isentropic compressible…

偏微分方程分析 · 数学 2018-06-13 Irene M. Gamba , Cheng Yu

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…

偏微分方程分析 · 数学 2023-09-07 Gui-Qiang G. Chen , Lin He , Yong Wang , Difan Yuan

We study the Riemann problem for the multidimensional compressible isentropic Euler equations. Using the framework developed by Chiodaroli, De Lellis, Kreml and based on the techniques of De Lellis and Sz\'{e}kelyhidi, we extend our…

偏微分方程分析 · 数学 2018-04-04 Elisabetta Chiodaroli , Ondřej Kreml

We study the Cauchy problem for the Schr\"odinger-improved Boussinesq system in a two dimensional domain. Under natural assumptions on the data without smallness, we prove the existence and uniqueness of global strong solutions. Moreover,…

偏微分方程分析 · 数学 2022-01-11 Tohru Ozawa , Kenta Tomioka

We analyze systems of semilinear wave equations in $3+1$ dimensions whose associated asymptotic equation admit bounded solutions for suitably small choices of initial data. Under this special case of the weak null condition, which we refer…

偏微分方程分析 · 数学 2021-06-11 Todd A. Oliynyk , J. Arturo Olvera-Santamaría

In this paper, we study the initial boundary value problem for the nonlinear wave equation with combined power-type nonlinearities with variable coefficients. The global behavior of the solutions with non-positive and sub-critical energy is…

偏微分方程分析 · 数学 2023-10-31 Milena Dimova , Natalia Kolkovska , Nikolai Kutev

The global regularity problem for the Boussinesq system is a well known open problem in mathematical fluid dynamics. As a follow up to our work \cite{EJSI}, we give examples of finite-energy and Lipschitz continuous velocity field and…

偏微分方程分析 · 数学 2018-02-27 Tarek M. Elgindi , In-Jee Jeong

The initial boundary-value problem (IBVP) and the Cauchy problem for the Kuramoto--Sivashinsky equation and other related $2m$th-order semilinear parabolic partial differential equations in one and N dimensions are considered. Global…

偏微分方程分析 · 数学 2009-02-03 V. A. Galaktionov , E. Mitidieri , S. I. Pohozaev

We study the compressible quantum Navier-Stokes (QNS) equations with degenerate viscosity in the three dimensional periodic domains. On the one hand, we consider QNS with additional damping terms. Motivated by the recent works [Li-Xin,…

偏微分方程分析 · 数学 2020-01-08 Boqiang Lü , Rong Zhang , Xin Zhong

We study the global existence issue for the two-dimensional Boussinesq system with horizontal viscosity in only one equation. We first examine the case where the Navier-Stokes equation with no vertical viscosity is coupled with a transport…

偏微分方程分析 · 数学 2013-02-27 Raphaël Danchin , Marius Paicu

We investigate the initial-value problem of the non-linear Liouville hierarchy. For the general form of the interaction potential we construct an explicit solution in terms of an expansion over particle clusters whose evolution is described…

数学物理 · 物理学 2009-11-13 V. O. Shtyk

In this paper we consider the isentropic compressible Euler equations in two space dimensions together with particular initial data. The latter consists only of two constant states, where one state lies on the lower and the other state on…

偏微分方程分析 · 数学 2017-10-09 Christian Klingenberg , Simon Markfelder

We are concerned with the global existence theory for spherically symmetric solutions of the multidimensional compressible Euler equations with large initial data of positive far-field density. The central feature of the solutions is the…

偏微分方程分析 · 数学 2022-02-17 Gui-Qiang G. Chen , Yong Wang

We give lower bounds for the lifespan of a solution to the inviscid Boussinesq system. In dimension two, we point out that it tends to infinity when the initial (relative) temperature tends to zero. This is, to the best of our knowledge,…

偏微分方程分析 · 数学 2013-04-03 Raphaël Danchin

This paper is concerned with a compressible MHD equations describing the evolution of viscous non-resistive fluids in piecewise regular bounded Lipschitz domains. Under the general inflow-outflow boundary conditions, we prove existence of…

偏微分方程分析 · 数学 2025-01-28 Yang Li , Young-Sam Kwon , Yongzhong Sun

In this work we study global boundedness and exponential integrability of weak solutions to degenerate $p$-Poisson equations using an iterative method of De Giorgi type. Given a symmetric, non-negative definite matrix valued function $Q$…

偏微分方程分析 · 数学 2023-09-11 Sullivan Francis MacDonald , Scott Rodney

Considered herein is the global existence of weak, strong solutions and Rayleigh-Taylor (RT) instability for 2D semi-dissipative Boussinesq equations in an infinite strip domain $\Omega_{\infty}$ subject to Navier boundary conditions with…

动力系统 · 数学 2024-05-28 Huafei Di , Liang Li , Xiaoming Peng , Quan Wang

In this paper, we consider the three-dimensional isentropic Navier-Stokes equations for compressible fluids with viscosities depending on density in a power law and allowing initial vacuum. We introduce the notion of regular solutions and…

偏微分方程分析 · 数学 2015-04-14 Yachun Li , Ronghua Pan , Shengguo Zhu

Our interest itself of this paper is strongly inspired from an open problem in the paper [1] published by D'Abbicco. In this article, we would like to study the Cauchy problem for a weakly coupled system of semi-linear structurally damped…

偏微分方程分析 · 数学 2019-11-12 Tuan Anh Dao

In this paper, we consider the initial-boundary value problem to the three-dimensional primitive equations for the oceanic and atmospheric dynamics with only horizontal eddy viscosities in the horizontal momentum equations and only vertical…

偏微分方程分析 · 数学 2024-08-14 Chongsheng Cao , Jinkai Li , Edriss S. Titi , Dong Wang
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