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We study the global existence of classical solutions for two-dimensional incompressible MHD system with only magnetic diffusion. By using the time-weighted lower-order energy and uniformly bounded higher-order energy estimates, we prove the…

偏微分方程分析 · 数学 2023-10-27 Yuanyuan Qiao

In this work we prove global existence and uniform boundedness of solutions of 2X2 reaction-diffusion systems with control of mass structure and nonlinearities of unlimited growth. Furthermore the results are obtained without restrictions…

偏微分方程分析 · 数学 2023-01-19 Said Kouachi

The global existence of classical solutions to reaction-diffusion systems in dimensions one and two is proved. The considered systems are assumed to satisfy an {\it entropy inequality} and have nonlinearities with at most cubic growth in 1D…

偏微分方程分析 · 数学 2017-11-29 Bao Quoc Tang

We study the solvability of a general class of cross diffusion systems and establish the local and global existence of their strong solutions under the weakest assumption that they are VMO. This work simplifies the setting in our previous…

偏微分方程分析 · 数学 2016-08-23 Dung Le

We prove global existence of the $3D$ relativistic Vlasov-Maxwell system for a class of arbitrary large regular initial data with spherical symmetry, in which the initial distribution function of particles is assumed to decay fast but…

偏微分方程分析 · 数学 2022-03-04 Xuecheng Wang

In this paper, we consider the full compressible, viscous, non-resistive MHD system under the assumption that the fluids move on a plane while the magnetic field is oriented vertically. Within the framework of Besov spaces, by introducing…

偏微分方程分析 · 数学 2024-08-15 Xiaoping Zhai , Shunhang Zhang

We show that there exist solutions of drift-diffusion equations in two dimensions with divergence-free super-critical drifts, that become discontinuous in finite time. We consider classical as well as fractional diffusion. However, in the…

偏微分方程分析 · 数学 2015-06-05 Luis Silvestre , Vlad Vicol , Andrej Zlatos

We consider the 3D incompressible Hall-MHD system and prove a stability theorem for global large solutions under a suitable integrable hypothesis in which one of the parcels is linked to the Hall term. As a byproduct, a class of global…

偏微分方程分析 · 数学 2015-04-28 Maicon J. Benvenutti , Lucas C. F. Ferreira

This paper is concerned with the Cauchy problem of the two-dimensional MHD system with magnetic diffusion. It was proved that the MHD equations have a unique global strong solution around the equilibrium state $(0, e_1)$. Furthermore, the…

偏微分方程分析 · 数学 2020-09-10 Zhouyu Li , Pan Liu , Pengcheng Niu

In this paper we are concerned with the global existence of smooth solutions to the turbulent flow equations for compressible flows in $\mathbb{R}^3$. The global well-posedness is proved under the condition that the initial data are close…

偏微分方程分析 · 数学 2012-04-10 Dongfen Bian , Boling Guo

The Euler-Maxwell system describes the evolution of a plasma when the collisions are important enough that each species is in a hydrodynamic equilibrium. In this paper we prove global existence of small solutions to this system set in the…

偏微分方程分析 · 数学 2011-07-11 Pierre Germain , Nader Masmoudi

We analyze a reaction-diffusion system describing the growth of microbial species in a model of flocculation type that arises in biology. Existence of global classical positive solutions is proved under general growth assumptions, with…

偏微分方程分析 · 数学 2023-01-19 Jeffrey Morgan , Samia Zermani

We present global existence results for solutions of reaction-diffusion systems on evolving domains. Global existence results for a class of reaction-diffusion systems on fixed domains are extended to the same systems posed on spatially…

斑图形成与孤子 · 物理学 2011-04-06 Chandrasekhar Venkataraman , Omar Lakkis , Anotida Madzvamuse

We study a two fluid system which models the motion of a charged fluid with Rayleigh friction, and in the presence of an electro-magnetic field satisfying Maxwell's equations. We study the well-posdness of the system in both space…

偏微分方程分析 · 数学 2017-05-15 Yoshikazu Giga , Slim Ibrahim , Shengyi Shen , Tsuyoshi Yoneda

We study the global existence of solutions to a one-dimensional drift-diffusion equation with logistic term, generalizing the classical parabolic-elliptic Keller-Segel aggregation equation arising in mathematical biology. In particular, we…

偏微分方程分析 · 数学 2016-11-15 Jan Burczak , Rafael Granero-Belinchón

We address the question of global in time existence of solutions to a magnetoviscoelastic system with general initial data. We show that the notion of dissipative solutions allows to prove such an existence in two and three dimensions. This…

偏微分方程分析 · 数学 2019-12-23 Martin Kalousek , Anja Schlömerkemper

We study the equations of a two dimensional incompressible Newtonian fluid coupled with a dispersive parabolic-elliptic system on bounded domains. Global in time weak solutions are shown to exist and converge with a rate to the stationary…

偏微分方程分析 · 数学 2008-10-14 Rolf J. Ryham

In this paper, we are concerned with the two-dimensional (2D) incompressible magnetohydrodynamic (MHD) equations with velocity dissipation given by $(-\Delta)^{\alpha}$ and magnetic diffusion given by reducing about logarithmic diffusion…

偏微分方程分析 · 数学 2023-03-31 Chao Deng , Zhuan Ye , Baoquan Yuan , Jiefeng Zhao

This paper is concerned with the local and global existence of solutions for a generalized $m$-component reaction--diffusion system with a tridiagonal $2$--Toeplitz diffusion matrix and polynomial growth. We derive the eigenvalues and…

偏微分方程分析 · 数学 2016-02-09 Salem Abdelmalek , Samir Bendoukha

We establish the global existence of weak solutions for a two-species cross-diffusion system, set on the 1-dimensional flat torus, in which the evolution of each species is governed by two mechanisms. The first of these is a diffusion which…

偏微分方程分析 · 数学 2025-04-28 Alpár R. Mészáros , Guy Parker
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