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In this paper, we study the three-dimensional axisymmetric compressible Navier-Stokes equations with slip boundary conditions in a cylindrical domain excluding the axis. We establish the global existence and exponential decay of weak,…

偏微分方程分析 · 数学 2025-11-19 Qinghao Lei

We analyze the relativistic Euler equations of conservation laws of baryon number and momentum with a general pressure law. The existence of global-in-time bounded entropy solutions for the system is established by developing a compensated…

偏微分方程分析 · 数学 2022-05-11 Gui-Qiang G. Chen , Matthew R. I. Schrecker

This paper concerns the barotropic compressible Navier-Stokes equations in a two-dimensional half-space subject to Navier-slip boundary conditions with vacuum or non-vacuum far-field density. The global existence and large-time behavior of…

偏微分方程分析 · 数学 2026-05-29 Qinghao Lei , Weirong Liang

We construct a class of global, dynamical solutions to the 3d Euler equations near the stationary state given by uniform "rigid body" rotation. These solutions are axisymmetric, of Sobolev regularity, have non-vanishing swirl and scatter…

偏微分方程分析 · 数学 2022-10-10 Yan Guo , Benoit Pausader , Klaus Widmayer

The 3D compressible and incompressible Euler equations with a physical vacuum free boundary condition and affine initial conditions reduce to a globally solvable Hamiltonian system of ordinary differential equations for the deformation…

偏微分方程分析 · 数学 2017-03-10 Thomas C. Sideris

In this paper, we proved the well-posedness theory of compressible subsonic jet flows for two-dimensional steady Euler system with {\it general} incoming horizontal velocity as long as the flux is larger than a critical value. One of the…

偏微分方程分析 · 数学 2024-02-23 Yan Li , Wenhui Shi , Lan Tang , Chunjing Xie

In this work, we study the so-called Allen-Cahn-Navier-Stokes equations, a diffuse-interface model for two-phase incompressible flows with different densities. We first prove the local-in-time existence and uniqueness of classical solutions…

偏微分方程分析 · 数学 2023-03-09 Ning Jiang , Yi-Long Luo , Di Ma

In this paper, we provide a classification of steady solutions to two-dimensional incompressible Euler equations in terms of the set of flow angles. The first main result asserts that the set of flow angles of any bounded steady flow in the…

偏微分方程分析 · 数学 2024-05-27 Changfeng Gui , Chunjing Xie , Huan Xu

For the physical vacuum free boundary problem with the sound speed being $C^{{1}/{2}}$-H$\ddot{\rm o}$lder continuous near vacuum boundaries of the three-dimensional compressible Euler equations with damping, the global existence of…

偏微分方程分析 · 数学 2014-10-31 Huihui Zeng

The purpose of this work is to prove existence of a weak solution of the two dimensional incompressible Euler equations on a noncylindrical domain consisting of a smooth, bounded, connected and simply connected domain undergoing a…

偏微分方程分析 · 数学 2007-12-26 Flavia Z. Fernandes , Milton C. Lopes Filho

The Cauchy problem for the compressible flow of nematic liquid crystals in the framework of critical spaces is considered. We first establish the existence and uniqueness of global solutions provided that the initial data are close to some…

偏微分方程分析 · 数学 2015-08-03 Qunyi Bie , Haibo Cui , Qiru Wang , Zheng-an Yao

We establish the vanishing viscosity limit of the Navier-Stokes equations to the Euler equations for three-dimensional compressible isentropic flow in the whole space. It is shown that there exists a unique regular solution of compressible…

偏微分方程分析 · 数学 2019-06-26 Yongcai Geng , Yachun Li , Shengguo Zhu

We consider a modified Euler equation on $\mathbb R^2$. We prove existence of weak global solutions for bounded (and fast decreasing at infinity) initial conditions and construct Gibbs-type measures on function spaces which are…

偏微分方程分析 · 数学 2021-08-13 Ana Bela Cruzeiro , Alexandra Symeonides

An important problem in the theory of compressible gas flows is to understand the singular behavior of vacuum states. The main difficulty lies in the fact that the system becomes degenerate at the vacuum boundary, where the characteristics…

偏微分方程分析 · 数学 2008-06-12 Juhi Jang , Nader Masmoudi

We investigate compressible nematic liquid crystal flows in three-dimensional (3D) bounded domains with slip boundary condition for velocity and Neumann boundary condition for orientation field. By applying piecewise-estimate method and…

偏微分方程分析 · 数学 2023-10-09 Yang Liu , Xin Zhong

In this article, we construct a continuum family of self-similar waiting time solutions for the one-dimensional compressible Euler equations for the adiabatic exponent $\ga\in(1,3)$ in the half-line with the vacuum boundary. The solutions…

偏微分方程分析 · 数学 2025-01-15 Juhi Jang , Jiaqi Liu , Nader Masmoudi

We prove the global existence of weak solutions to the Navier-Stokes equations of compressible heat-conducting fluids in two spatial dimensions with initial data and external forces which are large and spherically symmetric. The solutions…

偏微分方程分析 · 数学 2012-05-01 Fei Jiang , Song Jiang , Junpin Yin

In this announcement, we report results on the existence of families of large-amplitude internal hydrodynamic bores. These are traveling front solutions of the full two-phase incompressible Euler equation in two dimensions. The fluids are…

偏微分方程分析 · 数学 2021-07-30 Robin Ming Chen , Samuel Walsh , Miles H. Wheeler

We show that the multi-dimensional compressible Euler system for isothermal flow of an ideal, polytropic gas admits global-in-time, radially symmetric solutions with unbounded amplitudes due to wave focusing. The examples are similarity…

偏微分方程分析 · 数学 2020-05-26 Helge Kristian Jenssen , Charis Tsikkou

In this note, we prove that the solutions obtained to the spherically symmetric Euler equations in the recent works [2, 3] are weak solutions of the multi-dimensional compressible Euler equations. This follows from new uniform estimates…

偏微分方程分析 · 数学 2019-08-28 Matthew R. I. Schrecker