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We study the Muskat problem for one fluid or two fluids, with or without viscosity jump, with or without rigid boundaries, and in arbitrary space dimension $d$ of the interface. The Muskat problem is scaling invariant in the Sobolev space…

偏微分方程分析 · 数学 2020-03-18 Huy Q. Nguyen , Benoît Pausader

We investigate the instability and stability of some steady-states of a three-dimensional nonhomogeneous incompressible viscous flow driven by gravity in a bounded domain $\Omega$ of class $C^2$. When the steady density is heavier with…

偏微分方程分析 · 数学 2013-11-19 Fei Jiang , Song Jiang

We establish the local existence and uniqueness of multi-dimensional contact discontinuities for the ideal compressible magnetohydrodynamics (MHD) in Sobolev spaces, which are most typical interfacial waves for astrophysical plasmas and…

偏微分方程分析 · 数学 2024-05-21 Yanjin Wang , Zhouping Xin

We are concerned with nonlinear stability and existence of two-dimensional current-vortex sheets in ideal compressible magnetohydrodynamics. This is a nonlinear hyperbolic initial-boundary value problem with characteristic free boundary. It…

偏微分方程分析 · 数学 2023-05-24 Alessandro Morando , Paolo Secchi , Paola Trebeschi , Difan Yuan

This paper is concerned with the asymptotic stability analysis of a one dimensional wave equation subject to a nonmonotone distributed damping. A well-posedness result is provided together with a precise characterization of the asymptotic…

偏微分方程分析 · 数学 2019-02-07 Swann Marx , Yacine Chitour , Christophe Prieur

We consider the ideal magnetohydrodynamics (MHD) of a shallow fluid layer on a rapidly rotating planet or star. The presence of a background toroidal magnetic field is assumed, and the "shallow water" beta-plane approximation is used. We…

地球与行星天体物理 · 物理学 2015-06-22 Alexander M. Balk

We consider the long time behavior of solutions to the magnetohydrodynamics equations in two and three spatial dimensions. It is shown that in the absence of magnetic diffusion, if strong bounded solutions were to exist their energy cannot…

偏微分方程分析 · 数学 2007-05-23 Ruben Agapito , Maria Schonbek

We study the two-dimensional Muskat problem in a horizontally periodic setting and for fluids with arbitrary densities and viscosities. We show that in the presence of surface tension effects the Muskat problem is a quasilinear parabolic…

偏微分方程分析 · 数学 2018-04-30 Bogdan-Vasile Matioc

This paper investigates the well-posedness of the hydrostatic MHD-wave system. Unlike the standard hydrostatic MHD equations, the tangential magnetic field equation in this system is degenerate hyperbolic rather than parabolic, which leads…

偏微分方程分析 · 数学 2025-12-09 Wei-Xi Li , Zhan Xu

In this paper, we obtain the global well-posedness and the asymptotic behavior of solution of non-resistive 2D MHD problem on the half space. We overcome the difficulty of zero spectrum gap by building the relationship between half space…

偏微分方程分析 · 数学 2024-01-22 Jiakun Jin , Yoshiyuki Kagei , Xiaoxia Ren , Lei Wang , Cuili Zhai

Consider stochastic partial differential equations (SPDEs) with fully local monotone coefficients in a Gelfand triple $V\subseteq H \subseteq V^*$: \begin{align*} \left\{ \begin{aligned} dX(t) & = A(t,X(t))dt + B(t,X(t))dW(t), \quad t\in…

概率论 · 数学 2025-08-07 Michael Röckner , Shijie Shang , Tusheng Zhang

Physical experiments and numerical simulations have observed a remarkable stabilizing phenomenon: a background magnetic field stabilizes and damps electrically conducting fluids. This paper intends to establish this phenomenon as a…

偏微分方程分析 · 数学 2022-11-01 Hongxia Lin , Jiahong Wu , Yi Zhu

Given sufficiently regular data \textit{without} decay assumptions at infinity, we prove local well-posedness for non-linear dispersive equations of the form \[ \partial_t u + \mathsf A(\nabla) u + \mathcal Q(|u|^2) \cdot \nabla u= \mathcal…

偏微分方程分析 · 数学 2024-09-10 Jason Zhao

We consider a general nonlinear dispersive equation with monomial nonlinearity of order $k$ over $\mathbb{R}^d$. We construct a rigorous theory which states that higher-order nonlinearities and higher dimensions induce sharper local…

偏微分方程分析 · 数学 2024-12-17 Simão Correia , Pedro Leite

This paper is concerned with the initial value problem for a system of one-dimensional fourth-order dispersive partial differential equations on the torus with nonlinearity involving derivatives up to second order. This paper gives…

偏微分方程分析 · 数学 2024-11-04 Eiji Onodera

The paper deals with local well-posedness, global existence and blow-up results for reaction--diffusion equations coupled with nonlinear dynamical boundary conditions.

偏微分方程分析 · 数学 2026-01-06 Alessio Fiscella , Enzo Vitillaro

It is shown that the cubic derivative nonlinear Schr\"odinger equation is locally well-posed in Besov spaces $B^{s}_{2,\infty}(\mathbb X)$, $s\ge\tfrac12$, where we treat the non-periodic setting $\mathbb X=\mathbb R$ and the periodic…

偏微分方程分析 · 数学 2016-11-18 Cai Constantin Cloos

We study the free boundary problem for contact discontinuities in ideal compressible magnetohydrodynamics (MHD). They are characteristic discontinuities with no flow across the discontinuity for which the pressure, the magnetic field and…

偏微分方程分析 · 数学 2014-06-30 Alessandro Morando , Yuri Trakhinin , Paola Trebeschi

In this paper, we are concerned with the local and global existence for the stochastic Prandtl equation in two and three dimensions, which governs the velocity field inside the boundary layer that appears in the inviscid limit of the…

偏微分方程分析 · 数学 2024-08-09 Ya-Guang Wang , Meng Zhao

The paper is devoted to investigating the well-posedness, stability and large-time behavior near the hydrostatic balance for the 2D Boussinesq equations with partial dissipation. More precisely, the global well-posedness is obtained in the…

偏微分方程分析 · 数学 2024-07-30 Kyungkeun Kang , Jihoon Lee , Dinh Duong Nguyen