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The aim of this article is to study the limiting behavior of the solutions for the scaled generalized Euler equations of compressible fluid flow. When the initial data is of Riemann type, we showed the existence of solution which consists…

偏微分方程分析 · 数学 2019-07-17 Manas Ranjan Sahoo , Abhrojyoti Sen

We consider the time-harmonic Maxwell equations at a nonzero wavenumber $k\in\mathbb{C}$ on a bounded and simply connected Lipschitz domain $\Omega$ with an analytic boundary $\Gamma$, on which we impose impedance boundary conditions. We…

偏微分方程分析 · 数学 2026-03-18 Jens Markus Melenk , David Wörgötter

In this paper, we consider the inviscid limit problem to the higher dimensional incompressible Navier--Stokes equations in the whole space. It is shown in [Guo, Li, Yin: J. Funct. Anal., 276 (2019)] that given initial data $u_0\in…

偏微分方程分析 · 数学 2023-06-06 Jinlu Li , Yanghai Yu , Weipeng Zhu

We establish a weak-strong uniqueness result for the isentropic compressible Euler equations, that is: As long as a sufficiently regular solution exists, all energy-admissible weak solutions with the same initial data coincide with it. The…

偏微分方程分析 · 数学 2021-03-31 Shyam Sundar Ghoshal , Animesh Jana , Emil Wiedemann

In this paper, the Cauchy problem for the multi-dimensional (M-D) bipolar Euler-Poisson equations with far field vacuum is considered. Based on physical observations and some elaborate analysis of this system's intrinsic symmetric…

偏微分方程分析 · 数学 2025-08-12 Zhongmin Qian , Liang Zhao , Shengguo Zhu

In Part I of the paper, we prove non-uniqueness of the solution to the Cauchy problem of the Euler equations of an ideal incompressible fluid in dimension two with vorticity in some Lebesgue space. The radially symmetric external force is…

偏微分方程分析 · 数学 2018-05-25 Misha Vishik

In the present paper, we study the fast rotation limit for the density-dependent incompressible Euler equations in two space dimensions with the presence of the Coriolis force. In the case when the initial densities are small perturbation…

偏微分方程分析 · 数学 2021-06-28 Gabriele Sbaiz

We study the long-time behavior of solutions to the compressible Euler equations with frictional damping in the whole space, where we prescribe direction-dependent values for the density at spatial infinity. To this end, we transform the…

偏微分方程分析 · 数学 2025-08-04 Thomas Eiter , Stefanie Schindler

The fluid dynamic limit of the Boltzmann equation leading to the Euler equations for an incompressible fluid with constant density in the presence of material boundaries shares some important features with the better known inviscid limit of…

偏微分方程分析 · 数学 2013-05-01 François Golse

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 prove via convex integration a result that allows to pass from a so-called subsolution of the isentropic Euler equations (in space dimension at least $2$) to exact weak solutions. The method is closely related to the incompressible…

偏微分方程分析 · 数学 2021-07-23 Tomasz Dębiec , Jack W. D. Skipper , Emil Wiedemann

We show that a specific skew-symmetric form of nonlinear hyperbolic problems leads to energy and entropy bounds. Next, we exemplify by considering the compressible Euler equations in primitive variables, transform them to skew-symmetric…

偏微分方程分析 · 数学 2025-02-18 Jan Nordström

In this paper we introduce (I,J) similar method for incompressible two and three dimensional Euler equations and Navier-Stokes equations, obtain a series of explicit (I,J) similar solutions to the incompressible two dimensional Euler…

数学物理 · 物理学 2013-07-16 Ganshan Yang

In this paper, we study the limiting behavior of Riemann solutions to the Euler equations of one-dimensional compressible fluid flow as $\gamma$ tends to one. We show that the limit solution forms the delta wave to the pressureless Euler…

偏微分方程分析 · 数学 2019-04-11 Shouqiong Sheng , Zhiqiang Shao

In this paper, we consider the quasi-neutral limit of a three dimensional Euler-Poisson system of compressible fluids coupled to a magnetic field. We prove that, as Debye length tends to zero, periodic initial-value problems of the model…

偏微分方程分析 · 数学 2018-07-04 Jianwei Yang

We start with the classic result that the Cauchy problem for ideal compressible gas dynamics is locally well posed in time in the sense of Hadamard; there is a unique solution that depends continuously on initial data in Sobolev space $H^s$…

偏微分方程分析 · 数学 2016-11-18 Barbara Lee Keyfitz , Feride Tiglay

We consider the initial-boundary value problem in the halfspace for the system of equations of ideal Magneto-Hydrodynamics with a perfectly conducting wall boundary condition. We show the convergence of solutions to the solution of the…

偏微分方程分析 · 数学 2024-07-04 Paolo Secchi

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

We consider two distinguished asymptotic limits of the Euler equations in a gravitational field, namely the incompressible and Boussinesq limits. Both these limits can be obtained as singular limits of the Euler equations under appropriate…

数值分析 · 数学 2019-02-04 K. R. Arun , S. Samantaray

Building on the recent work of C. De Lellis and L. Sz\'{e}kelyhidi, we construct global weak solutions to the three-dimensional incompressible Euler equations which are zero outside of a finite time interval and have velocity in the…

偏微分方程分析 · 数学 2014-02-17 Philip Isett