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We establish the global existence of a class of weak solutions to the isentropic compressible Navier-Stokes and magnetohydrodynamic (MHD) equations on the whole plane under a suitably small initial energy. The solutions constructed here…

偏微分方程分析 · 数学 2026-02-09 Shuai Wang , Xin Zhong

Consider the $3$-d primitive equations in a layer domain $\Omega=G \times (-h,0)$, $G=(0,1)^2$, subject to mixed Dirichlet and Neumann boundary conditions at $z=-h$ and $z=0$, respectively, and the periodic lateral boundary condition. It is…

偏微分方程分析 · 数学 2021-03-29 Yoshikazu Giga , Mathis Gries , Matthias Hieber , Amru Hussein , Takahito Kashiwabara

In this paper we prove the global existence and uniqueness (regularity) of strong solutions to the three-dimensional viscous primitive equations, which model large scale ocean and atmosphere dynamics.

偏微分方程分析 · 数学 2007-05-23 Chongsheng Cao , Edriss S. Titi

We establish the global existence and uniqueness of classical solutions to the three-dimensional full compressible Navier-Stokes system with smooth initial data which are of small energy but possibly large oscillations where the initial…

数学物理 · 物理学 2011-08-08 Xiangdi Huang , Jing Li

Initial-boundary value problems in a bounded rectangle with different types of boundary conditions for two-dimensional Zakharov-Kuznetsov equation are considered. Results on global well-posedness in the classes of weak and regular solution…

偏微分方程分析 · 数学 2017-06-06 Andrei V. Faminskii

We consider the nonlocal Cahn-Hilliard equation with singular (logarithmic) potential and constant mobility in three-dimensional bounded domains and we establish the validity of the instantaneous strict separation property. This means that…

偏微分方程分析 · 数学 2024-12-18 Andrea Poiatti

The evolution of two partially miscible, nonhomogeneous, incompressible viscous fluids of non-Newtonian type, can be governed by the Navier-Stokes-Cahn-Hilliard system. In the present work, we prove the global existence of weak solutions…

偏微分方程分析 · 数学 2025-12-25 Fang Li , Duan Xingyu , Guo Zhenhua

In this paper, we mainly investigate the tridimensional incompressible axisymmetric Euler equations without swirl in the whole space. Specifically, we prove the global existence of weak solutions if the swirl component of initial vorticity…

偏微分方程分析 · 数学 2017-08-16 Quansen Jiu , Jitao Liu , Dongjuan Niu

We establish the global existence and uniqueness of strong solutions to the initial boundary value problem for incompressible MHD equations in a bounded smooth domain of three spatial dimensions with initial density being allowed to have…

偏微分方程分析 · 数学 2013-12-03 Huajun Gong , Jinkai Li

The well-posedness of Cauchy problem of 3D compressible Euler equations is studied. By using Smith-Tataru's approach \cite{ST}, we prove the local existence, uniqueness and stability of solutions for Cauchy problem of 3D compressible Euler…

偏微分方程分析 · 数学 2021-08-17 Huali Zhang , Lars Andersson

We study the well-posedness for initial boundary value problems associated with time fractional diffusion equations with non-homogenous boundary and initial values. We consider both weak and strong solutions for the problems. For weak…

偏微分方程分析 · 数学 2020-04-30 Yavar Kian , Masahiro Yamamoto

In this paper, we prove the existence of global weak solutions to the compressible two-fluid Navier-Stokes equations in three dimensional space. The pressure depends on two different variables from the continuity equations. We develop an…

偏微分方程分析 · 数学 2017-10-17 Alexis Vasseur , Huanyao Wen , Cheng Yu

First of all, we get the global existence of classical and strong solutions of the full compressible Navier-Stokes equations in three space dimensions with initial data which is large and spherically or cylindrically symmetric. The…

偏微分方程分析 · 数学 2012-04-19 Huanyao Wen , Changjiang Zhu

A well-known diffuse interface model for incompressible isothermal mixtures of two immiscible fluids consists of the Navier-Stokes system coupled with a convective Cahn-Hilliard equation. In some recent contributions the standard…

偏微分方程分析 · 数学 2013-01-14 Sergio Frigeri , Maurizio Grasselli , Pavel Krejčí

We continue our study on the global solution to the two-dimensional Prandtl's system for unsteady boundary layers in the class considered by Oleinik provided that the pressure is favorable. First, by using a different method from [13], we…

偏微分方程分析 · 数学 2022-05-04 Zhouping Xin , Liqun Zhang , Junning Zhao

In this paper, we investigate the global existence of weak solutions to 3-D inhomogeneous incompressible MHD equations with variable viscosity and resistivity, which is sufficiently close to $1$ in $L^\infty(\mathbb{R}^3),$ provided that…

偏微分方程分析 · 数学 2025-03-04 Hammadi Abidi , Guilong Gui , Ping Zhang

We demonstrate the global existence of weak solutions to a class of semilinear strongly damped wave equations possessing nonlinear hyperbolic dynamic boundary conditions. Our work assumes $(-\Delta_W)^\theta \partial_tu$ with…

偏微分方程分析 · 数学 2018-12-27 Joseph L. Shomberg

This paper is a continuation of our previous work (arXiv:2507.03505), where the global existence and incompressible limit of weak solutions to the isentropic compressible Navier-Stokes equations in the half-plane with ripped density and…

偏微分方程分析 · 数学 2025-10-28 Shuai Wang , Guochun Wu , Xin Zhong

This paper extends the author's previous analysis in \cite{AMZ3} on weak solutions with large norms for the collisional quantum hydrodynamic (QHD) equations in semiconductor modeling to 2-dimensional tori. We first establish the global…

偏微分方程分析 · 数学 2026-02-26 Hao Zheng

We prove that for almost every initial data $(u_0,u_1) \in H^s \times H^{s-1}$ with $s > \frac{p-3}{p-1}$ there exists a global weak solution to the supercritical semilinear wave equation $\partial _t^2u - \Delta u +|u|^{p-1}u=0$ where…

偏微分方程分析 · 数学 2021-03-16 Mickaël Latocca