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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

In this paper, we construct a class global large solution to the 3D incompressible micropolar fluid system. Precisely speaking, by choosing a special initial data which can be arbitrarily large in $\dot{B}^{-1}_{\infty,\infty}$, the system…

偏微分方程分析 · 数学 2020-06-03 Jinlu Li , Weipeng Zhu

This paper is devoted to the proof of almost global existence results for Klein-Gordon equations on Zoll manifolds (e.g. spheres of arbitrary dimension) with Hamiltonian nonlinearities, when the Cauchy data are smooth and small. The proof…

动力系统 · 数学 2007-05-23 Dario Bambusi , Jean-Marc Delort , Benoit Grebert , Jeremie Szeftel

In this paper, we provide a much simplified proof of the main result in [Lin and Zhang, Comm. Pure Appl. Math.,67(2014), 531--580] concerning the global existence and uniqueness of smooth solutions to the Cauchy problem for a 3D…

偏微分方程分析 · 数学 2015-06-19 Fanghua Lin , Ting Zhang

We consider the Cauchy problem with smooth data for compressible Euler equations in many dimensions and concentrate on two cases: solutions with finite mass and energy and solutions corresponding to a compact perturbation of a nontrivial…

偏微分方程分析 · 数学 2020-10-30 Olga Rozanova

Our interest itself of this paper is strongly inspired from an open problem in the paper [1] published by D'Abbicco. In this article, we would like to study the Cauchy problem for a weakly coupled system of semi-linear structurally damped…

偏微分方程分析 · 数学 2019-11-12 Tuan Anh Dao

A review of some of the issues that have arisen over the years concerning the energy distribution among scales for magnetohydrodynamics (MHD) turbulence is given here. A variety of tools are employed to that effect, and a central role is…

等离子体物理 · 物理学 2012-11-06 Annick Pouquet

In our earlier work \cite{DLL}, we have shown the global well-posedness of strong solutions to the three-dimensional primitive equations with the magnetic field (PEM) on a thin domain. The heart of this paper is to provide a rigorous…

偏微分方程分析 · 数学 2022-08-04 Lili Du , Dan Li

Inspired by an approach proposed previously for the incompressible Navier-Stokes (NS) equations, we present a general framework for the a posteriori analysis of the equations of incompressible magnetohydrodynamics (MHD) on a torus of…

偏微分方程分析 · 数学 2020-01-16 Livio Pizzocchero , Emanuele Tassi

This paper deals with the Cauchy-Dirichlet problem for the fractional Cahn-Hilliard equation. The main results consist of global (in time) existence of weak solutions, characterization of parabolic smoothing effects (implying under proper…

偏微分方程分析 · 数学 2018-01-08 Goro Akagi , Giulio Schimperna , Antonio Segatti

The classical Hall effect in inhomogeneous systems is considered for the case of one-dimensional inhomogeneity. For a certain geometry of the problem and for the magnetic field linearly depending on the coordinate the density of current…

介观与纳米尺度物理 · 物理学 2009-10-31 A. V. Chaplik

The nonhomogeneous incompressible Magnetohydrodynamic Equations with density-dependent viscosity is studied in three-dimensional (3D) exterior domains with slip boundary conditions. The key is the constraint of an additional initial value…

偏微分方程分析 · 数学 2025-02-19 Bing Yuan , Rong Zhang , Peng Zhou

We shall be concerned with the Cauchy problem for quasilinear systems in three space dimensions of the form \label{i.1} \partial^2_tu^I-c^2_I\Delta u^I = C^{IJK}_{abc}\partial_c u^J\partial_a\partial_b u^K + B^{IJK}_{ab}\partial_a…

偏微分方程分析 · 数学 2007-05-23 Christopher D. Sogge

The electron magnetohydrodynamics (MHD) contains a highly nonlinear Hall term with an interesting structure. Exploring the Hall nonlinear structure, we investigate possible phenomena of finite time blow up for the electron MHD with a…

偏微分方程分析 · 数学 2025-03-20 Mimi Dai

This paper investigates the stabilization effect of a background magnetic vorticity on electrically conducting fluids. By exploring the dissipation nature of the linearized equations, we prove the global existence of smooth solutions to the…

偏微分方程分析 · 数学 2023-11-16 Yuanyuan Qiao , Yi Zhou

In this work we numerically test a model of Hall magnetohydrodynamics in the presence of a strong mean magnetic field, the reduced Hall MHD model (RHMHD) derived by Gomez et al., with the addition of weak compressible effects. The main…

等离子体物理 · 物理学 2012-02-28 L. N. Martin , P. Dmitruk , D. O. Gomez

In this paper, we study the global existence of classical solutions to the three dimensional incompressible viscous magneto-hydrodynamical system without magnetic diffusion on periodic boxes, i.e., with periodic boundary conditions. We work…

偏微分方程分析 · 数学 2018-03-06 Ronghua Pan , Yi Zhou , Yi Zhu

This paper concerns the viscous and non-resistive MHD systems which govern the motion of electrically conducting fluids interacting with magnetic fields. We consider an initial-boundary value problem for both compressible and…

偏微分方程分析 · 数学 2017-11-17 Zhong Tan , Yanjin Wang

In this paper, we study the Cauchy problem of the 2D incompressible magnetohydrodynamic equations in Lei-Lin space. The global well-posedness of a strong solution in the Lei-Lin space $\chi^{-1}(\mathbb{R}^2)$ with any initial data in…

偏微分方程分析 · 数学 2020-06-30 Baoquan Yuan , Yamin Xiao

We consider the global existence and blow up of solutions of the Cauchy problem of the quasilinear wave equation: $\partial_{t}^2 u = \partial_x(c(u)^2 \partial_x u)$, which has richly physical backgrounds. Under the assumption that…

偏微分方程分析 · 数学 2013-05-16 Yuusuke Sugiyama