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We prove the global-in-time existence of H^2 solutions of the equations of compressible magnetohydrodynamics with zero magnetic resistivity in three space dimensions. Initial data are taken to be small in H^2 modulo a constant state and…

偏微分方程分析 · 数学 2020-11-16 Anthony Suen

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

To find out whether toroidal field can stably exist in galaxies the current-driven instability of toroidal magnetic fields is considered under the influence of an axial magnetic field component and under the influence of both rigid and…

星系天体物理 · 物理学 2015-05-19 G. Ruediger , M. Schultz , D. Elstner

We investigate the stability of scalar perturbations around a magnetized stationary compact object in General Relativity. The considered object is one of the simplest exact solutions of Einstein electrovacuum equations corresponding to a…

The goal of this paper is to construct non-trivial steady-state weak solutions of the three dimensional Electron Magnetohydrodynamics equations in the class of $H^s(\mathbb T^3)$ for some small $s > 0$. By exploiting the formulation of the…

偏微分方程分析 · 数学 2025-07-08 Qirui Peng

We present a detailed study of localised magnetohydrodynamical (MHD) instabilities occuring in two--dimensional magnetized accretion disks. We model axisymmetric MHD disk tori, and solve the equations governing a two--dimensional magnetized…

天体物理学 · 物理学 2011-07-08 J. W. S. Blokland , R. Keppens , J. P. Goedbloed

The global regularity for the incompressible magnetohydrodynamic equations (MHD) in three dimensions is a long standing open problem of fluid dynamics and PDE theory. The Navier-Stokes equations can be viewed as a special case of MHD with a…

偏微分方程分析 · 数学 2013-11-18 Zhen Lei

We investigate in this paper the global stability of the compressible viscous surface waves in the absence of surface tension effect with a steady-state violating Rayleigh-Taylor instability and the reference domain being the horizontal…

偏微分方程分析 · 数学 2025-06-25 Guilong Gui , Zhifei Zhang

In this paper, we solve a long-standing open problem: nonlinear stability of current-vortex sheet in the ideal incompressible Magneto-Hydrodynamics under the linear stability condition. This result gives a first rigorous confirmation of the…

偏微分方程分析 · 数学 2015-10-09 Yongzhong Sun , Wei Wang , Zhifei Zhang

We study the Cauchy problem of three-dimensional compressible non-isentropic magnetohydrodynamic (MHD) fluids with both interior and far field vacuum states. Applying delicate energy estimates, initial layer analysis, and continuation…

偏微分方程分析 · 数学 2024-08-23 Yang Liu , Xin Zhong

In this paper, we consider a layer of viscous incompressible isotropic micropolar fluid in a uniform gravitational field of finite depth, lying above a flat rigid bottom and below the atmosphere in a three-dimensional horizontally periodic…

偏微分方程分析 · 数学 2024-08-29 Yuchong Wei , Zheng-an Yao

This paper is concerned with nonlinear stability of viscous contact discontinuity to inflow problem for the one-dimensional full compressible Navier-Stokes equations with different ends in half space $[0,\infty)$. For the case when the…

偏微分方程分析 · 数学 2014-09-22 Tingting Zheng

We study the Muskat problem describing the spatially periodic motion of two fluids with equal viscosities under the effect of gravity in a vertical unbounded two-dimensional geometry. We first prove that the classical formulation of the…

偏微分方程分析 · 数学 2017-06-29 Anca-Voichita Matioc , Bogdan-Vasile Matioc

In this paper, we investigate the decay properties of axially symmetric solutions to the steady incompressible magnetohydrodynamic equations in $\mathbb{R}^3$ with finite Dirichlet integral. We first derive the decay rates of general…

偏微分方程分析 · 数学 2022-03-23 Shangkun Weng , Yan Zhou

In this paper we derive a criterion for the breakdown of classical solutions to the incompressible magnetohydrodynamic equations with zero viscosity and positive resistivity in $\mathbb{R}^3$. This result is analogous to the celebrated…

偏微分方程分析 · 数学 2009-01-20 Zhen Lei , Yi Zhou

We are interested in the stability analysis of two-dimensional incompressible inviscid fluids. Specifically, we revisit a recent result on the stability of Yudovich's solutions to the incompressible Euler equations in $L^\infty([0,T];H^1)$…

偏微分方程分析 · 数学 2023-12-25 Diogo Arsénio , Haroune Houamed

We investigate the global nonaxisymmetric Rossby vortex instability in a differentially rotating, compressible magnetized accretion disk with radial density structures. Equilibrium magnetic fields are assumed to have only the toroidal…

太阳与恒星天体物理 · 物理学 2009-08-11 Cong Yu , Hui Li

We consider viscous free-boundary magnetohydrodynamics(MHD) under vacuum in $\mathbb{R}^3$, especially when vacuum magnetic field is identically zero. It is a central problem in mathematics to perform vanishing viscosity limit to get a…

偏微分方程分析 · 数学 2017-04-13 Donghyun Lee

We present 3D magnetohydrodynamic (MHD) numerical simulations of the evolution of self--gravitating and weakly magnetized disks with an adiabatic equation of state. Such disks are subject to the development of both the magnetorotational and…

天体物理学 · 物理学 2009-11-10 Sebastien Fromang , Steven A. Balbus , Caroline Terquem , Jean-Pierre De Villiers

This paper studies the Cauchy problem for three-dimensional viscous, compressible, and heat conducting magnetohydrodynamic equations with vacuum as far field density. We prove the global existence and uniqueness of strong solutions provided…

偏微分方程分析 · 数学 2021-05-04 Yang Liu , Xin Zhong
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