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Related papers: Sharp and strong non-uniqueness for the magneto-hy…

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We investigate uniqueness of weak solutions for a system of partial differential equations capturing behavior of magnetoelastic materials. This system couples the Navier-Stokes equations with evolutionary equations for the deformation…

Analysis of PDEs · Mathematics 2018-06-13 Anja Schlömerkemper , Josef Žabenský

In this article the question on uniqueness of weak solution of the incompressible Navier-Stokes Equations in the 3-dimensional case is studied. Here the investigation is carried out with use of another approach. The uniqueness of velocity…

Analysis of PDEs · Mathematics 2020-09-29 Kamal N. Soltanov

This paper is devoted to the study of the weak-strong uniqueness property for the full compressible magnetohydrodynamics flows. The governing equations for magnetohydrodynamic flows are expressed by the full Navier-Stokes system for…

Analysis of PDEs · Mathematics 2013-01-16 Weiping Yan

In this paper we establish a new uniqueness result of weak solutions for the 3D Navier-Stokes equations. Under assumption that there is not uniqueness of weak solution in singular time, we prove that if two weak solutions $u$ and $v$ of 3D…

Analysis of PDEs · Mathematics 2016-06-15 Abdelhafid Younsi

We prove a sharp nonuniqueness result for the forced generalized SQG equation. First, this yields nonunique $\dot{H}^s$- energy solutions below the Miura-Ju class. In particular, this shows that the solutions constructed by Resnick and…

Analysis of PDEs · Mathematics 2026-01-05 Francisco Mengual , Marcos Solera

This article proposes a review of the analysis of the system of magnetohydrodynamics (MHD). First, we give an account of the modelling asumptions. Then, the results of existence of weak solutions, using the notion of renormalized solutions.…

Analysis of PDEs · Mathematics 2015-09-21 Xavier Blanc , Bernard Ducomet

The main subject of this paper concerns the establishment of certain classes of initial data, which grant short time uniqueness of the associated weak Leray-Hopf solutions of the three dimensional Navier-Stokes equations. In particular, our…

Analysis of PDEs · Mathematics 2017-03-08 T. Barker

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…

Analysis of PDEs · Mathematics 2020-06-30 Baoquan Yuan , Yamin Xiao

The main objective of this paper is to study the global strong solution of the parabolic-hyperbolic incompressible magnetohydrodynamic (MHD) model in two dimensional space. Based on Agmon, Douglis and Nirenberg's estimates for the…

Analysis of PDEs · Mathematics 2017-01-31 Ruikuan Liu , Jiayan Yang

This paper examines the uniqueness of weak solutions to the d-dimensional magnetohydrodynamic (MHD) equations with the fractional dissipation $(-\Delta)^\alpha u$ and without the magnetic diffusion. Important progress has been made on the…

Analysis of PDEs · Mathematics 2019-04-15 Quansen Jiu , Xiaoxiao Suo , Jiahong Wu , Huan Yu

In this paper, we study the weak-strong uniqueness for the Leray-Hopf type weak solutions to the Beris-Edwards model of nematic liquid crystals in $\R^3$ with an arbitrary parameter $\xi\in\R$, which measures the ratio of tumbling and…

Analysis of PDEs · Mathematics 2026-05-27 Fan Yang , Junjie Zhou

We study the global well-posedness of magnetohydrodynamic (MHD) equations. The hydrodynamic system consists of the Navier-Stokes equations for the fluid velocity coupled with a reduced from of the Maxwell equations for the magnetic field.…

Analysis of PDEs · Mathematics 2019-08-09 Chengfei Ai , Zhong Tan , Jianfeng Zhou

In this paper, we prove that suitable weak solution $(u,b)$ of the 3-D MHD equations can be extended beyond $T$ if $u\in L^\infty(0,T;L^3(\R^3))$ and the horizontal components $b_h$ of the magnetic field satisfies the well-known…

Analysis of PDEs · Mathematics 2016-03-09 Wendong Wang

We are concerned on the possibility of finite time singularity in a partially viscous magnetohydrodynamic equations in $\Bbb R^n$, $n=2,3$, namely the MHD with positive viscosity and zero resistivity. In the special case of zero magnetic…

Analysis of PDEs · Mathematics 2007-05-23 Dongho Chae

We present a weak-strong uniqueness result for the inhomogeneous Navier-Stokes (INS) equations in $\mathbb{R}^d$ ($d=2,3$) for bounded initial densities that are far from vacuum. Given a strong solution within the class employed in Paicu,…

Analysis of PDEs · Mathematics 2024-04-22 Timothée Crin-Barat , Stefan Škondrić , Alessandro Violini

We study the Cauchy problem for the isentropic hypo-viscous compressible Navier-Stokes equations (CNS) under general pressure laws in all dimensions $d\geq 2$. For all hypo-viscosities $(-\Delta)^\alpha$ with $\alpha\in (0,1)$, we prove…

Analysis of PDEs · Mathematics 2022-12-13 Yachun Li , Peng Qu , Zirong Zeng , Deng Zhang

This article studies the uniqueness of the weak solution of the incompressible Navier-Stokes Equations in the 3-dimensional case. Here, the investigation is provided using two different approaches. The first (the main) result is obtained…

Analysis of PDEs · Mathematics 2024-05-20 Kamal N. Soltanov

This paper characterizes the possible blow-up of solutions for the 3D magneto-hydrodynamics (MHD for short) equations. We first establish some $\epsilon$-regularity criteria in $L^{q,\infty}$ spaces for suitable weak solutions, and then…

Analysis of PDEs · Mathematics 2021-08-25 Wenke Tan , Fan Wu

In this paper, we establish the non-uniqueness of solutions to the ideal magnetohydrodynamics equations in any dimension greater than three by proving the existence of infinitely many compactly supported weak solutions. In particular, these…

Analysis of PDEs · Mathematics 2026-03-03 Changxing Miao , Zhiwen Zhao

This note is devoted to investigating Liouville type properties of the two dimensional stationary incompressible Magnetohydrodynamics equations. More precisely, under smallness conditions only on the magnetic field, we show that there are…

Analysis of PDEs · Mathematics 2020-01-08 Wendong Wang , Yuzhao Wang