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In this paper, we show the existence and uniqueness of a strong solution to stochastic 3D tamed Navier-Stokes equations driven by multiplicative Levy noise with periodic boundary conditions. Then we establish the large deviation principles…

概率论 · 数学 2020-02-24 Zhao Dong , Rangrang Zhang

We consider the Cauchy problem for the incompressible Navier-Stokes equations in dimension three and construct initial data in the critical space $BMO^{-1}$ from which there exist two distinct global solutions, both smooth for all $t>0$.…

偏微分方程分析 · 数学 2025-12-15 Matei P. Coiculescu , Stan Palasek

Existence of mild solutions for the magnetohydrodynamical system in C 1 domains is established in critical spaces in dimension n $\ge$3. The proof relies on recent regularity results on the Stokes operator in C 1 domains and a Leibniz-like…

偏微分方程分析 · 数学 2026-02-20 Sylvie Monniaux

This is a translation from French of my paper [R. May, Extension d'une classe d'unicite pour les equations de Navier-Stokes, Ann. I. H. Poincar\'{e}-AN 27 (2010) 705-718. doi:10.1016/j.anihp.2009.11.007]. Q. Chen, C. Miao, and Z. Zhang…

偏微分方程分析 · 数学 2018-04-10 Ramzi May

It is well-known that if one replaces standard velocity and magnetic dissipation by $(-\Delta)^\alpha u$ and $(-\Delta)^\beta b$ respectively, the magnetohydrodynamic equations are well-posed for $\alpha\ge\frac{5}{4}$ and $\alpha + \beta…

偏微分方程分析 · 数学 2025-12-23 Qibo Ma , Li Li

We prove that if $0<T_0<T\leq\infty$, $(\mathbf{u},\mathbf{b},p)$ is a suitable weak solution of the MHD equations in $\mathbb{R}^3\times(0,T)$ and either $\mathcal{F}_{\gamma}(p_-)\in L^{\infty}(0,T_0;\, L^{3/2}(\mathbb{R}^3))$ or…

偏微分方程分析 · 数学 2021-07-07 Jiri Neustupa , Minsuk Yang

We are concerned with the (stochastic) Lagrangian trajectories associated with Euler or Navier-Stokes equations. First, in the vanishing viscosity limit, we establish sharp non-uniqueness results for positive solutions to transport…

偏微分方程分析 · 数学 2025-05-01 Huaxiang Lü , Michael Röckner , Xiangchan Zhu

In this paper, we establish new $L^p$ gradient estimates of the solutions in order to discuss Cauchy problem for the full compressible magnetohydrodynamic(MHD) systems in $\mathrm{R}^3$. We use the "$\rm{div}-\rm{curl}$" decomposition…

偏微分方程分析 · 数学 2022-08-15 Chuanbao Wang , Fei Chen , Shuai Wang

In this paper, we establish the global existence and uniqueness of solution to $2$-D inhomogeneous incompressible Navier-Stokes equations \eqref{1.2} with initial data in the critical spaces. Precisely, under the assumption that the initial…

偏微分方程分析 · 数学 2023-12-08 Hammadi Abidi , Guilong Gui , Ping Zhang

In this paper, we derive regular criteria via pressure or gradient of the velocity in Lorentz spaces to the 3D Navier-Stokes equations. It is shown that a Leray-Hopf weak solution is regular on $(0,T]$ provided that either the norm…

偏微分方程分析 · 数学 2020-03-18 Xiang Ji , Yanqing Wang , Wei Wei

In this paper we consider the flow of two incompressible, viscous and immiscible fluids in a bounded domain, with different densities and viscosities. This model consists of a coupled system of Navier-Stokes and Mullins-Sekerka type parts,…

偏微分方程分析 · 数学 2025-05-13 Helmut Abels , Andrea Poiatti

Several formulations of a local geometric measure-type condition are imposed on super-level sets of mild solutions to the homogeneous incompressible 3D magnetohydrodynamical system with bounded initial data to prevent finite-time…

偏微分方程分析 · 数学 2012-04-23 Zachary Bradshaw

Consider the unforced incompressible homogeneous Navier-Stokes equations on the $d$-torus $\mathbb{T}^d$ where $d\geq 4$ is the space dimension. It is shown that there exist nontrivial steady-state weak solutions $u\in L^{2}(\mathbb{T}^d)$.…

偏微分方程分析 · 数学 2019-03-27 Xiaoyutao Luo

We prove that if $u$ is a suitable weak solution to the three dimensional Navier-Stokes equations from the space $L_{\infty}(0,T;\dot{B}_{\infty,\infty}^{-1})$, then all scaled energy quantities of $u$ are bounded. As a consequence, it is…

偏微分方程分析 · 数学 2020-08-05 Gregory Seregin , Daoguo Zhou

We study the regularity of weak solutions to the 3D valued stationary Hall magnetohydrodynamic equations on $ \Bbb R^2$. We prove that every weak solution is smooth. Furthermore, we prove a Liouville type theorem for the Hall equations.

偏微分方程分析 · 数学 2017-08-23 Dongho Chae , Joerg Wolf

The magnetohydrodynamics (MHD) equations are generally known to be difficult to solve numerically, due to their highly nonlinear structure and the strong coupling between the electromagnetic and hydrodynamic variables, especially for high…

数值分析 · 数学 2022-11-11 Fabian Laakmann , Patrick E. Farrell , Lawrence Mitchell

This paper is concerned with a compressible MHD equations describing the evolution of viscous non-resistive fluids in piecewise regular bounded Lipschitz domains. Under the general inflow-outflow boundary conditions, we prove existence of…

偏微分方程分析 · 数学 2025-01-28 Yang Li , Young-Sam Kwon , Yongzhong Sun

The goal of the present paper is to study the weak--strong uniqueness problem for the compressible Navier--Stokes system with a general barotropic pressure law. Our results include the case of a hard sphere pressure of Van der Waals type…

偏微分方程分析 · 数学 2019-07-17 Nilasis Chaudhuri

We consider three dimensional incompressible Navier-Stokes equation $(NS)$ with different viscous coefficient in the vertical and horizontal variables. In particular, when one of these viscous coefficients is large enough compared to the…

偏微分方程分析 · 数学 2018-12-18 Marius Paicu , Ping Zhang

We study local regularity properties of a weak solution $u$ to the Cauchy problem of the incompressible Navier-Stokes equations. We present a new regularity criterion for the weak solution $u$ satisfying the condition…

偏微分方程分析 · 数学 2016-11-16 Hi Jun Choe , Jörg Wolf , Minsuk Yang