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相关论文: On the local smoothness of weak solutions to the M…

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We establish a new regularity property for weak solutions of parabolic systems with coefficients depending measurably on time as well as on all spatial variables. Namely, weak solutions are locally H{\"o}lder continuous Lp valued functions…

偏微分方程分析 · 数学 2018-09-05 Pascal Auscher , Simon Bortz , Moritz Egert , Olli Saari

In Lagrangian coordinates, the local well-posedness of low regularity solutions is established for an ideal incompressible magnetohydrodynamic (MHD) system subject to a homogeneous background magnetic field. First, the MHD system is…

偏微分方程分析 · 数学 2026-02-05 Huali Zhang

This paper studies the global well-posedness of the incompressible magnetohydrodynamic (MHD) system with a velocity damping term. We establish the global existence and uniqueness of smooth solutions when the initial data is close to an…

偏微分方程分析 · 数学 2013-11-26 Jiahong Wu , Yifei Wu , Xiaojing Xu

The weakly compressible smoothed particle hydrodynamics (WCSPH) method has been employed to simulate various physical phenomena involving fluids and solids. Various methods have been proposed to implement the solid wall, inlet/outlet, and…

数值分析 · 数学 2022-12-14 Pawan Negi , Prabhu Ramachandran

In this article, we show that the magneto-hydrodynamic system (MHD) in $\R^N$ with variable density, variable viscosity and variable conductivity has a local weak solution in the Besov space $\dot B^{\frac{N}{p_1}}_{p_1,1}(\R^N)\times\dot…

偏微分方程分析 · 数学 2008-06-23 Hammadi Abidi , Marius Paicu

In this paper, we exhibit non-uniqueness of Leray weak solutions of the forced magnetohydrodynamic (MHD for short) equations. Similar to the solutions constructed in \cite{ABC2}, we first find a special steady solution of ideal MHD…

偏微分方程分析 · 数学 2024-07-10 Jun Wang , Fei Xu , Yong Zhang

This paper characterizes the possible blow-up of solutions for the 3D magneto-hydrodynamics (MHD for short) equations. We first establish some $\epsilon$-regularity criteria in $L^{q,\infty}$ spaces for suitable weak solutions, and then…

偏微分方程分析 · 数学 2021-08-25 Wenke Tan , Fan Wu

We study the problem of propagation of regularity of solutions to the incompressible viscous non-resistive magneto-hydrodynamics system. According to scaling, the Sobolev space $H^{\frac n2-1}(\mathbb R^n)\times H^{\frac n2}(\mathbb R^n)$…

偏微分方程分析 · 数学 2018-03-15 Mimi Dai

In this paper we consider the long time well-posedness of solutions to two dimensional compressible magnetohydrodynamics (MHD) boundary layer equations. When the initial data is a small perturbation of a steady solution with size of…

偏微分方程分析 · 数学 2022-08-02 Shengxin Li , Feng Xie

We consider a two-dimensional MHD model describing the evolution of viscous, compressible and electrically conducting fluids under the action of vertical magnetic field without resistivity. Existence of global weak solutions is established…

偏微分方程分析 · 数学 2019-07-02 Yang Li , Yongzhong Sun

We are concerned with the uniform regularity estimates of solutions to the two dimensional compressible non-resistive magnetohydrodynamics (MHD) equations with the no-slip boundary condition on velocity in the half plane. Under the…

偏微分方程分析 · 数学 2021-08-31 Xiufang Cui , Shengxin Li , Feng Xie

Motivated by problems arising in geometric flows, we prove several regularity results for systems of local and nonlocal equations, adapting to the parabolic case a neat argument due to Caffarelli. The geometric motivation of this work comes…

偏微分方程分析 · 数学 2020-05-11 Agnid Banerjee , Gonzalo Dávila , Yannick Sire

We revisit the issue of conservation of magnetic helicity and the Woltjer-Taylor relaxation theory in magnetohydrodynamics in the context of weak solutions. We introduce a relaxed system for the ideal MHD system, which decouples the effects…

偏微分方程分析 · 数学 2021-09-21 Daniel Faraco , Sauli Lindberg , László Székelyhidi

This is an expository paper on the theory of local regularity for weak solutions to the non-stationary 3D Navier-Stokes equations near the boundary of a domain.

偏微分方程分析 · 数学 2019-07-16 Gregory Seregin , Timofey Shilkin

We consider a general compressible MHD system, where the magnetic field propagates in a heterogeneous medium. Using suitable penalization in terms of the transport coefficients we perform several singular limits. As a result we obtain: 1. A…

偏微分方程分析 · 数学 2025-05-19 Jan Brezina , Eduard Feireisl

In the present paper, we investigate the regularity and symmetry properties of weak solutions to semilinear elliptic equations which are locally stable.

偏微分方程分析 · 数学 2021-02-25 Louis Dupaigne , Alberto Farina

In this paper, we consider the motion of incompressible magnetohydrodynamics (MHD) with resistivity in a domain bounded by a free surface. The free boundary problem for MHD is an important problem not only for mathematical fluid dynamics…

偏微分方程分析 · 数学 2021-01-26 Kenta Oishi , Yoshihiro Shibata

This paper is concerned with the incompressible limit of the compressible magnetohydrodynamic equations with periodic boundary conditions. It is rigorously shown that the weak solutions of the compressible magnetohydrodynamic equations…

偏微分方程分析 · 数学 2010-10-27 Song Jiang , Qiangchang Ju , Fucai Li

We consider two elliptic coupled systems of relevance in the fluid dynamics. These systems are posed on the whole three-dimensional space and they consider the action of external forces. The first system deals with the simplified…

偏微分方程分析 · 数学 2023-04-05 Oscar Jarrín

We consider a compact Riemannian manifold with boundary, endowed with a magnetic field and a potential. This is called an $\mathcal{MP}$-system. On simple $\mathcal{MP}$-systems, we consider both the boundary rigidity problem and the…

微分几何 · 数学 2023-12-06 Sebastián Muñoz-Thon