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In this paper, a class of fully nonlinear flows with nonlinear Neumann type boundary condition is considered. This problem was solved partly by the first author under the assumption that the flow is the parabolic type special Lagrangian…

偏微分方程分析 · 数学 2017-12-12 R. L. Huang , Y. H. Ye

The isometric immersion of two-dimensional Riemannian manifolds or surfaces with negative Gauss curvature into the three-dimensional Euclidean space is studied in this paper. The global weak solutions to the Gauss-Codazzi equations with…

偏微分方程分析 · 数学 2015-10-28 Wentao Cao , Feimin Huang , Dehua Wang

We consider a fully nonlinear parabolic equation with nonlinear Neumann type boundary condition, and show that the longtime existence and convergence of the flow. Finally we apply this study to the boundary value problem for minimal…

偏微分方程分析 · 数学 2016-06-14 R. L. Huang

We study the convergence rate of the solutions of the incompressible Euler-$\alpha$, an inviscid second-grade complex fluid, equations to the corresponding solutions of the Euler equations, as the regularization parameter $\alpha$…

偏微分方程分析 · 数学 2015-05-14 Jasmine S. Linshiz , Edriss S. Titi

Thermodynamically consistent models for two-phase flow in porous media have attracted significant attention in recent years. In this paper, we prove the existence, uniqueness and regularity of the weak solution to such a recent model…

偏微分方程分析 · 数学 2026-02-05 Huangxin Chen , Jisheng Kou , Haitao Leng , Shuyu Sun , Hai Zhao

We establish the existence, stability, and asymptotic behavior of transonic flows with a transonic shock past a curved wedge for the steady full Euler equations in an important physical regime, which form a nonlinear system of…

偏微分方程分析 · 数学 2017-01-02 Gui-Qiang Chen , Jun Chen , Mikhail Feldman

We construct global weak solutions of the Euler equations in an infinite cylinder $\Pi=\{x\in \mathbb{R}^{3}\ |\ x_h=(x_1,x_2),\ r=|x_h|<1\}$ for axisymmetric initial data without swirl when initial vorticity…

偏微分方程分析 · 数学 2019-01-08 Ken Abe

We study regularity properties of the data-to-solution maps of the family of generalized surface quasi-geostrophic equations which includes both the 2D incompressible Euler and the standard surface quasi-geostrophic equations. We prove that…

偏微分方程分析 · 数学 2026-03-24 Gerard Misiołek , Xuan-Truong Vu , Tsuyoshi Yoneda

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 incompressible Euler equations on a compact Riemannian manifold $(M,g)$ take the form \begin{align*} \partial_t u + \nabla_u u &= - \mathrm{grad}_g p \\ \mathrm{div}_g u &= 0, \end{align*} where $u: [0,T] \to \Gamma(T M)$ is the…

偏微分方程分析 · 数学 2019-04-02 Terence Tao

A new type of systematic approach to study the incompressible Euler equations numerically via the vanishing viscosity limit is proposed in this work. We show the new strategy is unconditionally stable that the $L^2$-energy dissipates and…

数值分析 · 数学 2024-06-19 Xinyu Cheng , Zhaonan Luo , Sheng Wang

We introduce second-gradient models for incompressible viscous fluids, building on the framework introduced by Fried and Gurtin. We propose a new and simple constitutive relation for the hyperpressure to ensure that the models are both…

偏微分方程分析 · 数学 2026-03-25 C. Balitactac , C. Rodriguez

We approximate the regular solutions of the incompressible Euler equation by the solution of ODEs on finite-dimensional spaces. Our approach combines Arnold's interpretation of the solution of Euler's equation for incompressible and…

数值分析 · 数学 2016-05-03 Thomas Gallouët , Quentin Mérigot

Considering the isentropic Euler equations of compressible fluid dynamics with geometric effects included, we establish the existence of entropy solutions for a large class of initial data. We cover fluid flows in a nozzle or in spherical…

偏微分方程分析 · 数学 2008-12-16 Philippe G. LeFloch , Michael Westdickenberg

We construct Gaussian invariant measures for the two-dimensional Euler equation on the plane. We show the existence of solution with initial conditions in the support of the measures, namely $H^\beta_{loc}(\R^2)$ with $\beta<-1$. Uniqueness…

偏微分方程分析 · 数学 2017-11-21 Ana Bela Cruzeiro , Alexandra Symeonides

We are concerned with the well-posedness of an inverse problem for determining the wedge boundary and associated two-dimensional steady supersonic Euler flow past the wedge, provided that the pressure distribution on the boundary surface of…

偏微分方程分析 · 数学 2024-09-30 Gui-Qiang G. Chen , Yun Pu , Yongqian Zhang

We formulated a problem on hypersonic limit of two-dimensional steady non-isentropic compressible Euler flows passing a straight wedge. It turns out that Mach number of the upcoming uniform supersonic flow increases to infinite may be taken…

偏微分方程分析 · 数学 2019-04-09 Aifang Qu , Hairong Yuan , Qin Zhao

The existence of a conjugate point on the volume-preserving diffeomorphism group of a compact Riemannian manifold M is related to the Lagrangian stability of a solution of the incompressible Euler equation on M. The Misiolek curvature is a…

微分几何 · 数学 2022-05-11 Leandro Lichtenfelz , Taito Tauchi , Tsuyoshi Yoneda

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

We consider the inverse mean curvature flow in smooth Riemannian manifolds of the form $([R_{0},\infty)\times S^n,\bar{g})$ with metric $\bar{g}=dr^2+{\vartheta}^2(r){\sigma}$ and non-positive radial sectional curvature. We prove, that for…

微分几何 · 数学 2017-01-18 Julian Scheuer