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This paper considers the three dimensional Muskat problem in the stable regime. We obtain a conservation law which provides an $L^2$ maximum principle for the fluid interface. We also show global in time existence for strong and weak…

偏微分方程分析 · 数学 2019-05-02 Peter Constantin , Diego Cordoba , Francisco Gancedo , Luis Rodriguez-Piazza , Robert M. Strain

In this paper, we consider the three dimensional Cauchy problem of the compressible micropolar viscous flows, we prove the existence of unique global classical solution for smooth initial data with small initial energy but possibly large…

偏微分方程分析 · 数学 2022-12-28 Canze Zhu , Qiang Tao

The three-dimensional equations of compressible magnetohydrodynamic isentropic flows are considered. An initial-boundary value problem is studied in a bounded domain with large data. The existence and large-time behavior of global weak…

偏微分方程分析 · 数学 2015-05-13 Xianpeng Hu , Dehua Wang

This paper is concerned with the three-dimensional equations of a simplified hydrodynamic flow modeling the motion of compressible, nematic liquid crystal materials. The authors establish the global existence of classical solution to the…

偏微分方程分析 · 数学 2012-04-24 Jing Li , Zhonghai Xu , Jianwen Zhang

We consider the Cauchy problem for a strictly hyperbolic, $n\times n$ system in one space dimension: $u_t+A(u)u_x=0$, assuming that the initial data has small total variation. We show that the solutions of the viscous approximations…

偏微分方程分析 · 数学 2007-05-23 Stefano Bianchini , Alberto Bressan

We consider a coupled system consisting of the Navier-Stokes equations and a porous medium type of Keller-Segel system that model the motion of swimming bacteria living in fluid and consuming oxygen. We establish the global-in-time…

偏微分方程分析 · 数学 2016-05-04 Yun-Sung Chung , Kyungkeun Kang

We are concerned with a new solution formula and its applications to the analysis of properties of entropy solutions of the Cauchy problem for one-dimensional scalar hyperbolic conservation laws, wherein the flux functions exhibit convexity…

偏微分方程分析 · 数学 2025-04-28 Gaowei Cao , Gui-Qiang G. Chen , Xiaozhou Yang

Here we study a nonlinear thermoelasticity hyperbolic-parabolic system describing the balance of momentum and internal energy of a heat-conducting elastic body, preserving the positivity of temperature. So far, no global existence results…

偏微分方程分析 · 数学 2023-12-20 Tomasz Cieślak , Boris Muha , Srđan Trifunović

This paper investigates the Cauchy problem for the barotropic compressible Navier-Stokes equations in $\mathbb{R}^2$ with the constant state as far field, which may be vacuum or non-vacuum. Under the assumption of a sufficiently large bulk…

偏微分方程分析 · 数学 2026-01-27 Qinghao Lei , Chengfeng Xiong

The three-dimensional equations for the compressible flow of liquid crystals are considered. An initial-boundary value problem is studied in a bounded domain with large data. The existence and large-time behavior of a global weak solution…

偏微分方程分析 · 数学 2015-05-30 Dehua Wang , Cheng Yu

In this paper, we mainly study a hydrodynamic system modeling the flow of nematic liquid crystals. In three dimensions, we first establish local well-posedness of the initial-boundary value problem of the system. Then, we prove the…

偏微分方程分析 · 数学 2011-06-03 Wenke Tan , Zhaoyang Yin

The theory of weak solutions for nonlinear conservation laws is now well developed in the case of scalar equations [3] and for one-dimensional hyperbolic systems [1, 2]. For systems in several space dimensions, however, even the global…

偏微分方程分析 · 数学 2007-05-23 Alberto Bressan

In this paper, we provide a much simplified proof of the main result in [Lin and Zhang, Comm. Pure Appl. Math.,67(2014), 531--580] concerning the global existence and uniqueness of smooth solutions to the Cauchy problem for a 3D…

偏微分方程分析 · 数学 2015-06-19 Fanghua Lin , Ting Zhang

The present paper deals with the Cauchy problem of a multi-dimensional non-conservative viscous compressible two-fluid system. We first study the well-posedness of the model in spaces with critical regularity indices with respect to the…

偏微分方程分析 · 数学 2020-10-20 Fuyi Xu , Meiling Chi , Lishan Liu , Yonghong Wu

We consider the Cauchy problem to the three-dimensional isentropic compressible Magnetohydrodynamics (MHD) system with density-dependent viscosities. When the initial density is linearly equivalent to a large constant state, we prove that…

偏微分方程分析 · 数学 2024-08-20 Yachun Li , Peng Lu , Zhaoyang Shang

This article deals with the issues of global-in-time existence and asymptotic analysis of a fluid-particle interaction model in the so-called bubbling regime. The mixture occupies the physical space $\Omega \subset \mathbb{R}^3$ which may…

偏微分方程分析 · 数学 2010-06-16 Jose A. Carrillo , Trygve Karper , Konstantina Trivisa

We consider weak solutions to a two-dimensional simplified Ericksen-Leslie system of compressible flow of nematic liquid crystals. An initial-boundary value problem is first studied in a bounded domain. By developing new techniques and…

偏微分方程分析 · 数学 2013-08-13 Fei Jiang , Song Jiang , Dehua Wang

We consider a thermodynamically consistent diffuse interface model describing two-phase flows of incompressible fluids in a non-isothermal setting. This model was recently introduced in a previous paper of ours, where we proved existence of…

偏微分方程分析 · 数学 2014-06-09 Michela Eleuteri , Elisabetta Rocca , Giulio Schimperna

In this paper, the Cauchy problem for the three-dimensional (3-D) isentropic compressible Navier-Stokes equations with degenerate viscosities is considered. By introducing some new variables and making use of the "quasi-symmetric…

偏微分方程分析 · 数学 2019-04-09 Zhouping Xin , Shengguo Zhu

We study the three-dimensional Cauchy problem for a non-isothermal compressible nematic liquid crystal system with far-field vacuum. By deriving refined energy estimates and exploiting the coupled structure of the equations, we establish…

偏微分方程分析 · 数学 2025-12-30 Lin Xu , Xin Zhong