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We study the Cauchy problem for multi-dimensional compressible radiation hydrodynamics equations with vacuum. First, we present some sufficient conditions on the blow-up of smooth solutions in multi-dimensional space. Then, we obtain the…

数学物理 · 物理学 2014-01-14 Yachun Li , Shengguo Zhu

We consider the Cauchy problem for the isentropic compressible Euler equations in a three-dimensional periodic domain under general pressure laws. For any smooth initial density away from the vacuum, we construct infinitely many entropy…

偏微分方程分析 · 数学 2022-07-13 Vikram Giri , Hyunju Kwon

We study the Cauchy problem for a system of equations corresponding to a singular limit of radiative hydrodynamics, namely the 3D radiative compressible Euler system coupled to an electromagnetic field. Assuming smallness hypotheses for the…

偏微分方程分析 · 数学 2017-05-23 Xavier Blanc , Bernard Ducomet , Sarka Necasova

We study the Cauchy problem for a system of equations corresponding to a singular limit of radiative hydrodynamics, namely the 3D radiative compressible Euler system coupled to an electromagnetic field through the MHD approximation.…

偏微分方程分析 · 数学 2017-08-15 X. Blanc , B. Ducomet , S. Necasova

In this paper, we consider the 3-D compressible isentropic radiation hydrodynamics (RHD) equations. The local existence of strong solutions with vacuum is firstly established when the initial data is arbitrarily large, contains vacuum and…

偏微分方程分析 · 数学 2014-11-03 Yachun Li , Shengguo Zhu

We consider the Cauchy problem for the isentropic compressible Euler-Maxwell equations under general pressure laws in a three-dimensional periodic domain. For any smooth initial electron density away from the vacuum and smooth…

偏微分方程分析 · 数学 2023-05-23 Shunkai Mao , Peng Qu

We review recent progress on the long-time regularity of solutions of the Cauchy problem for the water waves equations, in two and three dimensions. We begin by introducing the free boundary Euler equations and discussing the local…

偏微分方程分析 · 数学 2018-02-07 Alexandru D. Ionescu , Fabio Pusateri

In this paper, we study the Cauchy problem of the isentropic compressible magnetohydrodynamic equations in $\mathbb{R}^{3}$. When $(\gamma-1)^{\frac{1}{6}}E_{0}^{\frac{1}{2}}$, together with the $\|H_{0}\|_{L^{2}}$, is suitably small, a…

偏微分方程分析 · 数学 2015-03-12 Guangyi Hong , Xiaofeng Hou , Hongyun Peng , Changjiang Zhu

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

The motion of a compressible inviscid radiative flow can be described by the radiative Euler equations, which consists of the Euler system coupled with a Poisson equation for the radiative heat flux through the energy equation. Although…

偏微分方程分析 · 数学 2024-09-24 Huijiang Zhao , Boran Zhu

We consider the Cauchy problem with smooth data for compressible Euler equations in many dimensions and concentrate on two cases: solutions with finite mass and energy and solutions corresponding to a compact perturbation of a nontrivial…

偏微分方程分析 · 数学 2020-10-30 Olga Rozanova

In this paper, the Cauchy problem for the three-dimensional (3-D) isentropic compressible Navier-Stokes equations is considered. When viscosity coefficients are given as a constant multiple of the density's power ($\rho^\delta$ with…

偏微分方程分析 · 数学 2019-04-08 Zhouping Xin , Shengguo Zhu

The question of spontaneous apparition of singularity in the 3D incompressible Euler equations is one of the most important and challenging open problems in mathematical fluid mechanics. In this survey article we review some of recent…

偏微分方程分析 · 数学 2007-05-23 Dongho Chae

The mathematical analysis on the behavior of the entropy for viscous, compressible, and heat conducting magnetohydrodynamic flows near the vacuum region is a challenging problem as the governing equation for entropy is highly degenerate and…

偏微分方程分析 · 数学 2023-02-23 Yang Liu , Xin Zhong

We consider the Cauchy problem for the barotropic Euler system coupled to Helmholtz or Poisson equations, in the whole space. We assume that the initial density is small enough, and that the initial velocity is close to some reference…

偏微分方程分析 · 数学 2019-06-20 Šárka Nečasová , Xavier Blanc , Raphaël Danchin , Bernard Ducomet , andš Nečasová

In this paper, we consider the Cauchy problem of the isentropic compressible Navier-Stokes equations with degenerate viscosity and vacuum in $\mathbb{R}$, where the viscosity depends on the density in a super-linear power law(i.e.,…

偏微分方程分析 · 数学 2024-03-19 Yue Cao , Yachun Li , Shaojun Yu

By establishing a sharp Strichartz estimate for the velocity and density, we prove the local well-posedness of solutions for the Cauchy problem of two-dimensional compressible Euler equations, where the initial velocity, density, and…

偏微分方程分析 · 数学 2025-05-27 Huali Zhang

This paper studies the Cauchy problem for three-dimensional viscous, compressible, and heat conducting magnetohydrodynamic equations with vacuum as far field density. We prove the global existence and uniqueness of strong solutions provided…

偏微分方程分析 · 数学 2021-05-04 Yang Liu , Xin Zhong

For the natural initial conditions $L^1$ in the density field (more generally a positive bounded Radon measure) and $L^\infty$ in the velocity field we obtain global approximate solutions to the Cauchy problem for the 3-D systems of…

偏微分方程分析 · 数学 2014-06-03 Mathilde Colombeau

We study the Cauchy problem of three-dimensional compressible non-isentropic magnetohydrodynamic (MHD) fluids with both interior and far field vacuum states. Applying delicate energy estimates, initial layer analysis, and continuation…

偏微分方程分析 · 数学 2024-08-23 Yang Liu , Xin Zhong
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