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In this paper, the Cauchy problem for the three-dimensional (3-D) full compressible Navier-Stokes equations (CNS) with zero thermal conductivity is considered. First, when shear and bulk viscosity coefficients both depend on the absolute…

偏微分方程分析 · 数学 2023-01-18 Qin Duan , Zhouping Xin , Shengguo Zhu

We study finite time blow-up and global existence of solutions to the Cauchy problem for the porous medium equation with a variable density $\rho(x)$ and a power-like reaction term. We show that for small enough initial data, if…

偏微分方程分析 · 数学 2020-07-24 Giulia Meglioli , Fabio Punzo

An important physical model describing the dynamics of dilute weakly ionized plasmas in the collisional kinetic theory is the Vlasov-Poisson-Boltzmann system for which the plasma responds strongly to the self-consistent electrostatic force.…

偏微分方程分析 · 数学 2012-03-20 Renjun Duan , Tong Yang , Huijiang Zhao

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

The Cauchy problem for the complete Euler system is in general ill posed in the class of admissible (entropy producing) weak solutions. This suggests there might be sequences of approximate solutions that develop fine scale oscillations.…

数值分析 · 数学 2018-03-23 Eduard Feireisl , Maria Lukacova-Medvidova , Hana Mizerova

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 Euler-Poisson system is a fundamental two-fluid model to describe the dynamics of the plasma consisting of compressible electrons and a uniform ion background. By using the dispersive Klein-Gordon effect, Guo \cite{Guo98} first…

偏微分方程分析 · 数学 2011-09-21 Juhi Jang , Dong Li , Xiaoyi Zhang

In this paper, we study the global well-posedness of classical solution to 2D Cauchy problem of the compressible Navier-Stokes equations with large initial data and vacuum. It is proved that if the shear viscosity $\mu$ is a positive…

偏微分方程分析 · 数学 2012-07-26 Quansen Jiu , Yi Wang , Zhouping Xin

We study the Cauchy problem for the Einstein-Boltzmann system with soft potentials in a cosmological setting. We assume the Bianchi I symmetry to describe a spatially homogeneous, but anisotropic universe and consider a cosmological…

广义相对论与量子宇宙学 · 物理学 2024-08-21 Ho Lee , Ernesto Nungesser

The compressible Euler-Riesz equations are fundamental with wide applications in astrophysics, plasma physics, and mathematical biology. In this paper, we are concerned with the global existence and nonlinear stability of finite-energy…

偏微分方程分析 · 数学 2025-02-19 José A. Carrillo , Samuel R. Charles , Gui-Qiang G. Chen , Difan Yuan

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

The global solutions in critical spaces to the multi-dimensional compressible viscoelastic flows are considered. The global existence of the Cauchy problem with initial data close to an equilibrium state is established in Besov spaces.…

偏微分方程分析 · 数学 2010-10-22 Xianpeng Hu , Dehua Wang

We consider the Cauchy problem for the repulsive Vlasov-Poisson system in the three dimensional space, where the initial datum is the sum of a diffuse density, assumed to be bounded and integrable, and a point charge. Under some decay…

偏微分方程分析 · 数学 2018-05-21 Gianluca Crippa , Silvia Ligabue , Chiara Saffirio

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

We are concerned with the global existence and vanishing dispersion limit of strong/classical solutions to the Cauchy problem of the one-dimensional barotropic compressible quantum Navier-Stokes equations, which consists of the compressible…

偏微分方程分析 · 数学 2023-12-08 Zhengzheng Chen , Huijiang Zhao

We consider the Cauchy problem with smooth and compactly supported initial data for the wave equation in a general class of spherically symmetric geometries which are globally smooth and asymptotically flat. Under certain mild conditions on…

广义相对论与量子宇宙学 · 物理学 2011-06-23 Matthew P. Masarik

We revisit the 2D Cauchy problem of nonhomogeneous heat conducting magnetohydrodynamic (MHD) equations in $\mathbb{R}^2$. For the initial density allowing vacuum at infinity, we derive the global existence and uniqueness of strong solutions…

偏微分方程分析 · 数学 2022-01-05 Xin Zhong

This paper concerns the global well-posedness and large time asymptotic behavior of strong and classical solutions to the Cauchy problem of the Navier-Stokes equations for viscous compressible barotropic flows in two or three spatial…

偏微分方程分析 · 数学 2021-02-22 Jing Li , Zhouping Xin

For one dimensional or multidimensional compressible Euler system of polytropic gases, it is well known that the smooth solution will generally develop singularities in finite time. However, for three dimensional Chaplygin gases, due to the…

偏微分方程分析 · 数学 2014-07-29 Ding Bingbing , Witt Ingo , Yin Huicheng

We are concerned with spherically symmetric solutions to the Euler equations for the multi-dimensional compressible fluids, which have many applications in diverse real physical situations. The system can be reduced to one dimensional…

偏微分方程分析 · 数学 2019-08-20 Feimin Huang , Tianhong Li , Difan Yuan