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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…

Analysis of PDEs · Mathematics 2023-12-08 Hammadi Abidi , Guilong Gui , Ping Zhang

In this paper, we solve Lions' open problem: {\it the uniqueness of weak solutions for the 2-D inhomogeneous Navier-Stokes equations (INS)}. We first prove the global existence of weak solutions to 2-D (INS) with bounded initial density and…

Analysis of PDEs · Mathematics 2024-07-01 Tiantian Hao , Feng Shao , Dongyi Wei , Zhifei Zhang

This paper addresses the three-dimensional Navier-Stokes equations for an incompressible fluid whose density is permitted to be inhomogeneous. We establish a theorem of global existence and uniqueness of strong solutions for initial data…

Analysis of PDEs · Mathematics 2013-04-23 Walter Craig , Xiangdi Huang , Yun Wang

We here aim at proving the global existence and uniqueness of solutions to the inhomogeneous incompressible Navier-Stokes system in the case where the initial density is discontinuous and the initial velocity has critical regularity.…

Analysis of PDEs · Mathematics 2023-01-04 Raphaël Danchin , Shan Wang

In this paper, we consider the three-dimensional inhomogeneous Navier-Stokes equations with density-dependent viscosity in presence of vacuum over bounded domains. Global-in-time unique strong solution is proved to exist when $\|\nabla…

Analysis of PDEs · Mathematics 2015-01-05 Xiangdi Huang , Yun Wang

In this paper, we are concerned with the global wellposedness of 2-D density-dependent incompressible Navier-Stokes equations with variable viscosity, in a critical functional frame- work which is invariant by the scaling of the equations…

Analysis of PDEs · Mathematics 2012-12-18 Jingchi Huang , Marius Paicu , Ping Zhang

In this paper, we study the global well-posedness of the 3-D inhomogeneous incompressible Navier-Stokes system (INS in short) with initial density $\rho_0$ being discontinuous and initial velocity $u_0$ belonging to some critical space.…

Analysis of PDEs · Mathematics 2024-12-03 Tiantian Hao , Feng Shao , Dongyi Wei , Ping Zhang , Zhifei Zhang

In the current state of the art regarding the Navier--Stokes equations, the existence of unique solutions for incompressible flows in two spatial dimensions is already well-established. Recently, these results have been extended to models…

Analysis of PDEs · Mathematics 2024-11-11 Jean-Paul Adogbo , Piotr B. Mucha , Maja Szlenk

Given solenoidal vector $u_0\in H^{-2\d}\cap H^1(\R^2),$ $\r_0-1\in L^2(\R^2),$ and $\r_0 \in L^\infty\cap\dot{W}^{1,r}(\R^2)$ with a positive lower bound for $\d\in (0,\f12)$ and $2<r<\f{2}{1-2\d},$ we prove that 2-D incompressible…

Analysis of PDEs · Mathematics 2013-01-14 Hammadi Abidi , Ping Zhang

In this article, we prove the existence of global solutions to the inhomogeneous incompressible Navier--Stokes equations, whenever the initial velocity belongs to some subspace of $\mathrm{BMO}^{-1}$, and the initial density is sufficiently…

Analysis of PDEs · Mathematics 2023-08-02 Raphaël Danchin , Ioann Vasilyev

We are concerned with the existence and uniqueness of solutions with only bounded density for the barotropic compressible Navier-Stokes equations. Assuming that the initial velocity has slightly sub-critical regularity and that the initial…

Analysis of PDEs · Mathematics 2020-01-08 Raphaël Danchin , Francesco Fanelli , Marius Paicu

In this paper, we are concerned with the global wellposedness of 3-D inhomogeneous incompressible Navier-Stokes equations \eqref{1.3} in the critical Besov spaces with the norm of which are invariant by the scaling of the equations and…

Analysis of PDEs · Mathematics 2013-01-29 Jean-Yves Chemin , Marius Paicu , Ping Zhang

In this paper, we establish the global existence of small solutions to the inhomogeneous Navier-Stokes system in the half-space. The initial density only has to be bounded and close enough to a positive constant, and the initial velocity…

Analysis of PDEs · Mathematics 2013-10-08 Raphael Danchin , Ping Zhang

We investigate the global unique Fujita-Kato solution to the 3-D inhomogeneous incompressible Navier-Stokes equations with initial velocity $u_0$ being sufficiently small in critical spaces and with initial density being bounded from above…

Analysis of PDEs · Mathematics 2024-10-15 Hammadi Abidi , Guilong Gui , Ping Zhang

In this paper, we first prove the global existence of weak solutions to the d-dimensional incompressible inhomogeneous Navier-Stokes equations with initial data in critical Besov spaces, which satisfies a non-linear smallness condition. The…

Analysis of PDEs · Mathematics 2015-06-12 Jingchi Huang , Marius Paicu , Ping Zhang

In this article, we consider the global well-posedness to the 3-D incompressible inhomogeneous Navier-Stokes equations with a class of large velocity. More precisely, assuming $a_0 \in \dot{B}_{q,1}^{\frac{3}{q}}(\mathbb{R}^3)$ and…

Analysis of PDEs · Mathematics 2015-10-28 Cuili Zhai , Ting Zhang

Here we investigate the Cauchy problem for the inhomogeneous Navier-Stokes equations in the whole $n$-dimensional space. Under some smallness assumption on the data, we show the existence of global-in-time unique solutions in a critical…

Analysis of PDEs · Mathematics 2016-08-14 Raphaël Danchin , Piotr Bogusław Mucha

Without any smallness assumption, we prove the global unique solvability of the 2-D incompressible inhomogeneous Navier-Stokes equations with initial data in the critical Besov space, which is almost the energy space in the sense that they…

Analysis of PDEs · Mathematics 2019-08-07 Hammadi Abidi , Guilong Gui

We establish global well-posedness of strong solutions for the nonhomogeneous magnetohydrodynamic equations with density-dependent viscosity and initial density allowing vanish in two-dimensional (2D) bounded domains. Applying delicate…

Analysis of PDEs · Mathematics 2024-06-19 Xin Zhong

We study global well-posedness of strong solutions for the nonhomogeneous Navier-Stokes equations with density-dependent viscosity and initial density allowing vanish in $\mathbb{R}^2$. Applying a logarithmic interpolation inequality and…

Analysis of PDEs · Mathematics 2021-03-01 Xin Zhong
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