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In the paper, we study the three-dimensional Prandtl equations without any monotonicity condition on the velocity field. We prove that when one tangential component of the velocity field has a single curve of non-degenerate critical points…

偏微分方程分析 · 数学 2019-07-03 Wei-Xi Li , Tong Yang

We address the local well-posedness of the hydrostatic Navier-Stokes equations. These equations, sometimes called reduced Navier-Stokes/Prandtl, appear as a formal limit of the Navier-Stokes system in thin domains, under certain constraints…

偏微分方程分析 · 数学 2018-04-13 David Gerard-Varet , Nader Masmoudi , Vlad Vicol

We establish the well-posedness in Gevrey function space with optimal class of regularity 2 for the three dimensional Prandtl system without any structural assumption. The proof combines in a novel way a new cancellation in the system with…

偏微分方程分析 · 数学 2020-08-10 Wei-Xi Li , Nader Masmoudi , Tong Yang

In this paper, we study the hydrostatic approximation for the Navier-Stokes system in a thin domain. When the convex initial data with Gevrey regularity of optimal index 3/2 in x variable and Sobolev regularity in y variable, we justify the…

偏微分方程分析 · 数学 2024-11-20 Chao Wang , Yuxi Wang

In this paper, we investigate the global well-posedness of three-dimensional Navier-Stokes equations with horizontal viscosity under a special symmetric structure: helical symmetry. More precisely, by a revised Ladyzhenskaya-type inequality…

偏微分方程分析 · 数学 2017-06-28 Jitao Liu , Dongjuan Niu

We study the hyperbolic version of the Prandtl system derived from the hyperbolic Navier-Stokes system with no-slip boundary condition. Compared to the classical Prandtl system, the quasi-linear terms in the hyperbolic Prandtl equation…

偏微分方程分析 · 数学 2024-01-23 Wei-Xi Li , Tong Yang , Ping Zhang

We consider the viscous incompressible fluids in a three-dimensional horizontally periodic domain bounded below by a fixed smooth boundary and above by a free moving surface. The fluid dynamics are governed by the Navier-Stokes equations…

偏微分方程分析 · 数学 2024-04-30 Xing Cheng , Yunrui Zheng

We prove short-time well-posedness and existence of global weak solutions of the Beris--Edwards model for nematic liquid crystals in the case of a bounded domain with inhomogeneous mixed Dirichlet and Neumann boundary conditions. The system…

偏微分方程分析 · 数学 2013-11-15 Helmut Abels , Georg Dolzmann , YuNing Liu

Using a simple and well-motivated modification of the stress-energy tensor for a viscous fluid proposed by Lichnerowicz, we prove that Einstein's equations coupled to a relativistic version of the Navier-Stokes equations are well-posed in a…

数学物理 · 物理学 2014-07-25 Marcelo M. Disconzi

We establish the well-posedness of the MHD boundary layer system in Gevrey function space without any structural assumption. Compared to the classical Prandtl equation, the loss of tangential derivative comes from both the velocity and…

偏微分方程分析 · 数学 2020-09-15 Wei-Xi Li , Tong Yang

We study the Cauchy problem for a class of third order linear anisotropic evolution equations with complex valued lower order terms depending both on time and space variables. Under suitable decay assumptions for $|x| \to \infty$ on these…

偏微分方程分析 · 数学 2024-03-15 Alexandre Arias Junior , Alessia Ascanelli , Marco Cappiello

We analyze the stability properties of the so-called triple deck model, a classical refinement of the Prandtl equation to describe boundary layer separation. Combining the methodology introduced in [2], based on complex analysis tools, and…

偏微分方程分析 · 数学 2021-05-06 Helge Dietert , David Gérard-Varet

The Triple Deck model is a classical high order boundary layer model that has been proposed to describe flow regimes where the Prandtl theory is expected to fail. At first sight the model appears to lose two derivatives through the…

偏微分方程分析 · 数学 2019-05-21 Sameer Iyer , Vlad Vicol

In this paper, we study the three-dimensional non-isentropic compressible fluid-particle flows. The system involves coupling between the Vlasov-Fokker-Planck equation and the non-isentropic compressible Navier-Stokes equations through…

偏微分方程分析 · 数学 2019-04-18 Yanmin Mu , Dehua Wang

We study hyperbolic systems with multiplicities and smo\-oth coefficients. In the case of non-analytic, smooth coefficients, we prove well-posedness in any Gevrey class and when the coefficients are analytic, we prove $C^\infty$…

偏微分方程分析 · 数学 2016-06-13 Claudia Garetto , Christian Jäh

In this paper we investigate well-posedness of the Cauchy problem of the three dimensional generalized Navier-Stokes system. We first establish local well-posedness of the GNS system for any initial data in the Fourier-Herz space…

偏微分方程分析 · 数学 2013-06-18 Zeng Zhang , Zhaoyang Yin

We study the three-dimensional Electron Magnetohydrodynamics (EMHD) equations without resistivity, a regime known to be ill-posed in Sobolev and Gevrey spaces due to the quasilinear nature of the system. Motivated by recent work on…

偏微分方程分析 · 数学 2025-10-28 Ruimeng Hu , Qirui Peng , Xu Yang

In this paper we obtain new well-possedness results concerning a linear inhomogenous Stokes-like system. These results are used to establish local well-posedness in the critical spaces for initial density $\rho_{0}$ and velocity $u_{0}$…

偏微分方程分析 · 数学 2017-03-08 Cosmin Burtea

In the paper, we study the Prandtl system with initial data admitting non-degenerate critical points. For any index $\sigma\in[3/2, 2],$ we obtain the local in time well-posedness in the space of Gevrey class $G^\sigma$ in the tangential…

偏微分方程分析 · 数学 2017-08-30 Wei-Xi Li , Tong Yang

We are concerned with the problem of global well-posedness of the 3D Navier--Stokes equations on the torus with unitary viscosity. While a full answer to this question seems to be out of reach of the current techniques, we establish a…

概率论 · 数学 2023-05-05 Franco Flandoli , Martina Hofmanová , Dejun Luo , Torstein Nilssen
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