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In a recent work Sideris constructed a finite-parameter family of compactly supported affine solutions to the three-dimensional isentropic compressible Euler equations satisfying the physical vacuum condition. The support of these solutions…

偏微分方程分析 · 数学 2017-02-13 Mahir Hadzic , Juhi Jang

This paper provides results on local and global existence for a class of solutions to the Euler equations for an incompressible, inviscid fluid. By considering a class of solutions which exhibits a characteristic growth at infinity we…

偏微分方程分析 · 数学 2009-02-27 Ralph Saxton , Feride Tiglay

We prove the existence of a large class of global-in-time expanding solutions to vacuum free boundary compressible Euler flows without relying on the existence of an underlying finite-dimensional family of special affine solutions of the…

偏微分方程分析 · 数学 2019-04-03 Shrish Parmeshwar , Mahir Hadzic , Juhi Jang

The global existence of smooth solutions to the vacuum free boundary problem with physical singularity of compressible Euler equations with damping and gravity is proved in space dimensions $n=1, 2, 3$, for the initial data being small…

偏微分方程分析 · 数学 2021-10-29 Huihui Zeng

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 one-dimensional compressible Euler equations with damping, the global existence of the…

偏微分方程分析 · 数学 2014-08-01 Tao Luo , Huihui Zeng

We are concerned with the global existence theory for spherically symmetric solutions of the multidimensional compressible Euler equations with large initial data of positive far-field density. The central feature of the solutions is the…

偏微分方程分析 · 数学 2022-02-17 Gui-Qiang G. Chen , Yong Wang

We establish the existence and uniqueness of smooth solutions with large vorticity and weak solutions with vortex sheets/entropy waves for the steady Euler equations for both compressible and incompressible fluids in arbitrary infinitely…

偏微分方程分析 · 数学 2019-02-19 Gui-Qiang G. Chen , Fei-Min Huang , Tian-Yi Wang , Wei Xiang

We establish the existence of a stable family of solutions to the Euler equations on Kasner backgrounds near the singularity with the full expected asymptotic data degrees of freedom and no symmetry or isotropy restrictions. Existence is…

偏微分方程分析 · 数学 2025-02-17 Florian Beyer , Todd A. Oliynyk

For the physical vacuum free boundary problem of the damped compressible Euler equations in both 2D and 3D, we prove the global existence of smooth solutions and justify their time-asymptotic equivalence to the corresponding Barenblatt…

偏微分方程分析 · 数学 2025-11-06 Huihui Zeng

For the three-dimensional vacuum free boundary problem with physical singularity that the sound speed is $C^{ {1}/{2}}$-H$\ddot{\rm o}$lder continuous across the vacuum boundary of the compressible Euler equations with damping, without any…

偏微分方程分析 · 数学 2020-10-28 Huihui Zeng

Global existence for the nonisentropic compressible Euler equations with vacuum boundary for all adiabatic constants $\gamma > 1$ is shown through perturbations around a rich class of background nonisentropic affine motions. The notable…

偏微分方程分析 · 数学 2021-06-03 Calum Rickard , Mahir Hadzic , Juhi Jang

We concern with the global existence and large time behavior of compressible fluids (including the inviscid gases, viscid gases, and Boltzmann gases) in an infinitely expanding ball. Such a problem is one of the interesting models in…

偏微分方程分析 · 数学 2018-09-26 Gang Xu , Huicheng Yin

This paper deals with the evolution of the Einstein gravitational fields which are coupled to a perfect fluid. We consider the Einstein--Euler system in asymptotically flat spacestimes and therefore use the condition that the energy density…

偏微分方程分析 · 数学 2013-05-10 Uwe Brauer , Lavi Karp

Tai-Ping Liu \cite{Liu\_JJ} introduced the notion of "physical solution' of the isentropic Euler system when the gas is surrounded by vacuum. This notion can be interpreted by saying that the front is driven by a force resulting from a…

偏微分方程分析 · 数学 2015-04-08 Denis Serre

In this paper, the smooth solution of the physical vacuum problem for the one dimensional compressible Euler equations with time-dependent damping is considered. Near the vacuum boundary, the sound speed is $C^{1/2}$-H\"{o}lder continuous.…

偏微分方程分析 · 数学 2022-08-08 Xinghong Pan

We prove a global existence theorem for the $3\times 3$ system of relativistic Euler equations in one spacial dimension. It is shown that in the ultra-relativistic limit, there is a family of equations of state that satisfy the second law…

偏微分方程分析 · 数学 2007-05-23 Brian D. Wissman

In this paper, we study the global solvability of the density-dependent incompressible Euler equations, supplemented with a damping term of the form $ \mathfrak{D}_{\alpha}^{\gamma}(\rho, u) = \alpha \rho^{\gamma} u $, where $\alpha>0$ and…

偏微分方程分析 · 数学 2025-03-06 Marco Bravin , Francesco Fanelli

We prove the existence of a wide class of solutions to the isentropic relativistic Euler equations in 2 spacetime dimensions with an equation of state of the form $p=K\rho^2$ that have a fluid vacuum boundary. Near the fluid vacuum…

广义相对论与量子宇宙学 · 物理学 2013-10-11 Todd A. Oliynyk

We are concerned with the formation of singularities and the existence of global continuous solutions of the Cauchy problem for the one-dimensional non-isentropic Euler equations for compressible fluids. For the isentropic Euler equations,…

偏微分方程分析 · 数学 2021-11-09 Geng Chen , Gui-Qiang G. Chen , Shengguo Zhu

We prove global in time existence of solutions of the Euler compressible equations for a Van der Waals gas when the density is small enough in $\H{m}$, for $m$ large enough. To do so, we introduce a specific symmetrisation allowing areas of…

偏微分方程分析 · 数学 2010-04-08 Magali Mercier
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