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相关论文: On the uniqueness for the 2D MHD equations without…

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A main result of this paper establishes the global stability of the three-dimensional MHD equations near a background magnetic field with mixed fractional partial dissipation with $\alpha, \beta\in(\frac{1}{2}, 1]$. Namely, the velocity…

偏微分方程分析 · 数学 2023-08-16 Xuemin Deng , Yuelong Xiao , Aibin Zang

We study the weak solutions to the electron-MHD system and obtain a conditional uniqueness result. In addition, we prove conservation of helicity for weak solutions to the electron-MHD system under a geometric condition.

偏微分方程分析 · 数学 2019-11-20 Mimi Dai , Jacob Krol , Han Liu

Solutions to the compressible Euler equations in all dimensions have been shown to develop finite-time singularities from smooth initial data such as shocks and cusps. There is an extraordinary list of results on this subject. When the…

偏微分方程分析 · 数学 2025-07-10 Jiahong Wu , Fuyi Xu , Xiaoping Zhai

The equations of 2D incompressible dissipationless extended magnetohydrodynamics (XMHD) extend the equations of incompressible Hall MHD (HMHD) by retaining finite-electron inertia. These XMHD equations couple the fluid velocity ${\bf V} =…

等离子体物理 · 物理学 2025-08-26 Alain J. Brizard

In this paper, we prove the non-uniqueness of three-dimensional magneto-hydrodynamic (MHD) system in $C([0,T];L^2(\mathbb{T}^3))$ for any initial data in $H^{\bar{\beta}}(\mathbb{T}^3)$~($\bar{\beta}>0$), by exhibiting that the total energy…

偏微分方程分析 · 数学 2024-04-23 Changxing Miao , Weikui Ye

We prove the global uniqueness in determination of the conductivity, the permeability and the permittivity of two dimensional Maxwell's equations by partial Dirichlet-to-Neumann map limited to an arbitrary subboundary.

数学物理 · 物理学 2014-04-01 O. Yu. Imanuvilov M. Yamamoto

In this paper, we study the well-posedness of boundary layer problems for the inhomogeneous incompressible magnetohydrodynamics(MHD) equations, which are derived from the two dimensional density-dependent incompressible MHD equations.Under…

偏微分方程分析 · 数学 2018-12-18 Jincheng Gao , Daiwen Huang , Zheng-an Yao

This paper solves the global conormal regularity problem for the three-dimensional incompressible MHD equations with slip boundary condition near a background magnetic field. Motivated by applications in geophysics, the MHD system…

偏微分方程分析 · 数学 2025-07-01 Jincheng Gao , Jiahong Wu , Zheng-an Yao , Xuan Yin

We consider inertial magneto-hydrodynamic systems in 2D. We show global existence and uniqueness of smooth solutions and global existence and uniqueness of weak solutions in Yudovich class. We prove magnetic reconnection without magnetic…

偏微分方程分析 · 数学 2026-04-20 Peter Constantin , Zhongtian Hu

In this paper we study the global regularity of the following 2D (two-dimensional) generalized magnetohydrodynamic equations \begin{eqnarray*} \left\{\begin{array}{llll} u_t + u \cdot \nabla u & = & - \nabla p + b \cdot \nabla b - \nu…

偏微分方程分析 · 数学 2013-06-13 Quansen Jiu , Jiefeng Zhao

This paper is concerned with a Cauchy problem for the three-dimensional (3D) nonhomogeneous incompressible heat conducting magnetohydrodynamic (MHD) equations in the whole space. First of all, we establish a weak Serrin-type blowup…

偏微分方程分析 · 数学 2022-04-12 Huanyuan Li

In this paper, we obtain the low order global well-posedness and the asymptotic behavior of solution of 2D MHD problem with partial dissipation in half space with non-slip boundary condition. When magnetic field equal zero, the system be…

偏微分方程分析 · 数学 2024-03-01 Jiakun Jin , Xiaoxia Ren , Lei Wang

New exact solutions of the steady and incompressible 2D MHD equations in polar coordinates are presented. The solutions describe the process of reconnective magnetic annihilation in a curved current layer. They are particularly interesting…

等离子体物理 · 物理学 2009-11-07 E. Tassi , V. S. Titov , G. Hornig

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

This paper resolves the global regularity problem for the three-dimensional compressible magnetohydrodynamics (MHD) equations in the three-dimensional whole space, in the presence of a background magnetic field. Motivated by geophysical…

偏微分方程分析 · 数学 2026-05-13 Jincheng Gao , Xianpeng Hu , Lianyun Peng , Jiahong Wu

Physical experiments and numerical simulations have revealed a remarkable stabilizing phenomenon: a background magnetic field stabilizes and dampens electrically conducting fluids. This paper provides a rigorous mathematical justification…

偏微分方程分析 · 数学 2025-10-29 Qunyi Bie , Hui Fang , Yanping Zhou

Ambipolar diffusion is a process occurring in partially ionised astrophysical systems that imparts a complicated mathematical and physical nature to Ohm's law. The numerical codes that solve the magnetohydrodynamic (MHD) equations have to…

太阳与恒星天体物理 · 物理学 2022-06-15 F. Moreno-Insertis , D. Nóbrega-Siverio , E. R. Priest , A. W. Hood

In the present paper, we theoretically study the kinetic properties of 2D charged particles under a discontinuous magnetic field. It is shown that certain conditions could cause their bypassing of the H-theorem. We use the classical kinetic…

介观与纳米尺度物理 · 物理学 2022-04-06 P. M. Romanets

This paper establishes the local-in-time existence and uniqueness of strong solutions in $H^{s}$ for $s > n/2$ to the viscous, non-resistive magnetohydrodynamics (MHD) equations in $\mathbb{R}^{n}$, $n=2, 3$, as well as for a related model…

偏微分方程分析 · 数学 2014-01-21 C. L. Fefferman , D. S. McCormick , J. C. Robinson , J. L. Rodrigo

This paper resolves the global regularity problem for the three-dimensional incompressible magnetohydrodynamics (MHD) equations in the upper half-space with slip boundary conditions, in the presence of a background magnetic field. Motivated…

偏微分方程分析 · 数学 2025-08-14 Jincheng Gao , Lianyun Peng , Jiahong Wu , Zheng-an Yao