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We prove the global existence of weak solution for two dimensional Ericksen-Leslie system with the Leslie stress and general Ericksen stress under the physical constrains on the Leslie coefficients. We also prove the local well-posedness of…

偏微分方程分析 · 数学 2013-06-05 Meng Wang , Wendong Wang

The Ericksen-Leslie system is a fundamental hydrodynamic model that describes the evolution of incompressible liquid crystal flows of nematic type. In this paper, we prove the uniqueness of global weak solutions to the general…

偏微分方程分析 · 数学 2023-08-02 Francesco De Anna , Hao Wu

In this paper we investigate the three dimensional general Ericksen-Leslie (E--L) system with Ginzburg-Landau type approximation modeling nematic liquid crystal flows. First, by overcoming the difficulties from lack of maximum principle for…

偏微分方程分析 · 数学 2013-06-27 Cecilia Cavaterra , Elisabetta Rocca , Hao Wu

In this paper, we mainly investigate the tridimensional incompressible axisymmetric Euler equations without swirl in the whole space. Specifically, we prove the global existence of weak solutions if the swirl component of initial vorticity…

偏微分方程分析 · 数学 2017-08-16 Quansen Jiu , Jitao Liu , Dongjuan Niu

We establish the global existence of weak martingale solutions to the simplified stochastic Ericksen--Leslie system modeling the nematic liquid crystal flow driven by Wiener-type noises on the two-dimensional bounded domains. The…

偏微分方程分析 · 数学 2020-11-19 Hengrong Du , Changyou Wang

In this paper, we first establish the regularity theorem for suitable weak solutions to the Ericksen-Leslie system in dimensions two. Building on such a regularity, we then establish the existence of a global weak solution to the…

偏微分方程分析 · 数学 2015-06-16 Jinrui Huang , Fanghua Lin , Changyou Wang

For any bounded, smooth domain $\Omega\subset \R^2$, %(or $\Omega=\R^2$), we will establish the weak compactness property of solutions to the simplified Ericksen-Leslie system for both uniaxial and biaxial nematics, and the convergence of…

偏微分方程分析 · 数学 2020-06-09 Hengrong Du , Tao Huang , Changyou Wang

We consider the weak solution of the simplified Ericksen-Leslie system modeling compressible nematic liquid crystal flows in $\mathbb R^3$. When the initial data is small in $L^2$ and initial density is positive and essentially bounded, we…

偏微分方程分析 · 数学 2012-10-05 Guochun Wu , Zhong Tan

We study the Ericksen-Leslie system equipped with a quadratic free energy functional. The norm restriction of the director is incorporated by a standard relaxation technique using a double-well potential. We use the relative energy concept,…

偏微分方程分析 · 数学 2018-12-20 Etienne Emmrich , Robert Lasarzik

In this paper, we consider the boundary value problem of a simplified Ericksen-Leslie system in dimension two with non-slip boundary condition for the velocity field $u$ and time-dependent boundary condition for the director field $d$ of…

偏微分方程分析 · 数学 2018-11-09 Qiao Liu , Changyou Wang , Xiaotao Zhang , Jianfeng Zhou

In this article, we prove the existence of global weak solutions to the three-dimensional focusing energy-critical nonlinear Schr\"odinger (NLS) equation in the non-radial case. Furthermore, we prove the weak-strong uniqueness for some…

偏微分方程分析 · 数学 2026-01-30 Xing Cheng , Chang-Yu Guo , Yunrui Zheng

In this paper, we consider Cauchy problem of simplified Ericksen-Leslie system in dimension three. We establish the unique existence of global smooth solution under some nonlinear conditions on initial data. However, we do not need small…

偏微分方程分析 · 数学 2014-12-17 Wenke Tan , Zhaoyang Yin

In this article we construct global solutions to a simplified Ericksen-Leslie system on $\mathbb{R}^3$. The constructed solutions are twisted and periodic along the $x_3$-axis with period $d = 2\pi \big/ \mu$. Here $\mu > 0$ is the twist…

偏微分方程分析 · 数学 2016-10-06 Yuan Chen , Soojung Kim , Yong Yu

We prove the global existence of a helical weak solution of the 3D Euler equations, in full space, for an initial velocity with helical symmetry, without swirl and whose initial vorticity is compactly supported in the axial plane and…

偏微分方程分析 · 数学 2013-09-03 Anne C. Bronzi , Milton C. Lopes Filho , Helena J. Nussenzveig Lopes

In this paper we consider the 2D Ericksen-Leslie equations which describes the hydrodynamics of nematic Liquid crystal with external body forces and anisotropic energy modeling the energy of applied external control such as magnetic or…

偏微分方程分析 · 数学 2020-05-18 Zdzislaw Brzezniak , Gabriel Deugoue , Paul Andre Razafimandimby

In this paper, we study the Poiseuille laminar flow in a tube for the full Ericksen-Leslie system. It is a parabolic-hyperbolic coupled system which may develop singularity in finite time. We will prove the global existence of energy weak…

偏微分方程分析 · 数学 2025-06-03 Geng Chen , Tao Huang , Xiang Xu , Qingtian Zhang

The global-in-time existence of weak solutions to a spatially homogeneous multispecies Fokker-Planck-Landau system for plasmas in the three-dimensional whole space is shown. The Fokker-Planck-Landau system is a simplification of the Landau…

偏微分方程分析 · 数学 2024-01-17 Jingwei Hu , Ansgar Jüngel , Nicola Zamponi

The global existence of weak solutions for the three-dimensional axisymmetric Euler-$\alpha$ (also known as Lagrangian-averaged Euler-$\alpha$) equations, without swirl, is established, whenever the initial unfiltered velocity $v_0$…

偏微分方程分析 · 数学 2009-07-15 Quansen Jiu , Dongjuan Niu , Edriss S. Titi , Zhouping Xin

We consider the compressible Ericksen-Leslie system of liquid crystal flows in one dimension. A global weak solution is constructed with initial density $\rho_0\geq 0$ and $\rho_0\in L^\gamma$ for $\gamma>1$.

偏微分方程分析 · 数学 2020-06-18 Huajun Gong , Tao Huang , Changyou Wang

In this article, we investigate the global existence of martingale suitable weak solutions to stochastic Ericksen-Leslie equations with additive noise in a 3D torus. The notion of suitable weak solutions has been introduced to address…

偏微分方程分析 · 数学 2025-10-16 Hengrong Du , Chuntian Wang
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