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相关论文: Concentration-cancellation in the Ericksen-Leslie …

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In this paper, we derive a new model for the description of liquid crystalline flows. While microscopic Doi type models suffer from the high dimensionality of the underlying product space, the more macroscopic Ericksen--Leslie type models…

偏微分方程分析 · 数学 2021-03-04 Stefan Metzger

In [Commun Math Phys 348(1), 129-143, 2016], Cheskidov et al. proved that physically realizable weak solutions of the incompressible 2D Euler equations on a torus conserve kinetic energy. Physically realizable weak solutions are those that…

偏微分方程分析 · 数学 2022-02-23 Milton Lopes Filho , Helena Nussenzveig Lopes

We investigate the relaxation problem and the diffusion phenomenon for the compressible Euler system with a time-dependent damping coefficient of the form $\tfrac{\mu}{(1+t)^{\lambda}}$ in $\mathbb{R}^d$ $(d \geq 1)$. We establish uniform…

偏微分方程分析 · 数学 2025-12-09 Timothée Crin-Barat , Xinghong Pan , Ling-Yun Shou , Qimeng Zhu

In this paper, we investigate the global well-posedness of reaction-diffusion systems with transport noise on the $d$-dimensional torus. We show new global well-posedness results for a large class of scalar equations (e.g. the Allen-Cahn…

偏微分方程分析 · 数学 2024-08-16 Antonio Agresti , Mark Veraar

We investigate prototypical profiles of point defects in two dimensional liquid crystals within the framework of Landau-de Gennes theory. Using boundary conditions characteristic of defects of index $k/2$, we find a critical point of the…

偏微分方程分析 · 数学 2015-09-30 G. Di Fratta , JM Robbins , V. Slastikov , A. Zarnescu

This paper analytically investigates the Darcy-Poisson-Nernst-Planck system. This system is a mathematical model for electrolyte solutions. In this paper, we consider electrolyte solutions, which consist of a neutral fluid and multiple…

偏微分方程分析 · 数学 2016-05-25 Matthias Herz , Peter Knabner

We construct global weak solutions to isothermal quantum Navier-Stokes equations, with or without Korteweg term, in the whole space of dimension at most three. Instead of working on the initial set of unknown functions, we consider an…

偏微分方程分析 · 数学 2023-12-04 Rémi Carles , Kleber Carrapatoso , Matthieu Hillairet

We establish the global existence of weak solutions to a class of kinetic flocking equations. The models under consideration include the kinetic Cucker-Smale equation with possibly non-symmetric flocking potential, the Cucker-Smale equation…

偏微分方程分析 · 数学 2012-02-21 Trygve Karper , Antoine Mellet , Konstantina Trivisa

In this paper, we prove a central limit theorem and estabilish a moderate deviation principle for stochastic models of incompressible second fluids. The weak convergence method inreoduced by [4] plays an important role.

概率论 · 数学 2016-08-01 Jianliang Zhai , Tusheng Zhang , Wuting Zheng

We establish a weak-strong uniqueness principle for solutions to entropy-dissipating reaction-diffusion equations: As long as a strong solution to the reaction-diffusion equation exists, any weak solution and even any renormalized solution…

偏微分方程分析 · 数学 2017-03-03 Julian Fischer

We study a system of semi-linear elliptic partial differential equations with a lower order cubic nonlinear term, and inhomogeneous Dirichlet boundary conditions, relevant for two-dimensional bistable liquid crystal devices, within a…

数值分析 · 数学 2020-12-16 Ruma Rani Maity , Apala Majumdar , Neela Nataraj

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

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

We construct global dissipative solutions on the torus of dimension at most three of the defocusing isothermal Euler-Langevin-Korteweg system, which corresponds to the Euler-Korteweg system of compressible quantum fluids with an isothermal…

偏微分方程分析 · 数学 2020-10-15 Quentin Chauleur

We prove the global stability of small perturbation near the constant equilibrium for the two dimensional simplified Ericksen-Leslie's hyperbolic system for incompressible liquid crystal model, where the direction function of liquid crystal…

偏微分方程分析 · 数学 2026-03-13 Xuecheng Wang

We consider the limit $\alpha\to0$ for the $\alpha$-Euler equations in a two-dimensional bounded domain with Dirichlet boundary conditions. Assuming that the vorticity is bounded in $L^p$, we prove the existence of a global solution and we…

偏微分方程分析 · 数学 2017-12-06 Adriana Valentina Busuioc , Dragoş Iftimie

Let $\mathcal{S} = \{ \tau_n \}_{n=1}^\infty \subset (0,T)$ be an arbitrary countable (dense) set. We show that for any given initial density and momentum, the compressible Euler system admits (infinitely many) admissible weak solutions…

偏微分方程分析 · 数学 2019-05-01 Anna Abbatiello , Eduard Feireisl

We first review the phenomenology of viscous liquids and the standard models used for explaining the non-Arrhenius average relaxation time. Then the focus is turned to the so-called elastic models, arguing that these models are all…

软凝聚态物质 · 物理学 2009-11-11 Jeppe C. Dyre

We consider the 2D quasi-geostrophic model and its two different regularizations. Global regularity results are established for the regularized models with subcritical or critical indices. The proof of Onsager's conjecture concerning weak…

偏微分方程分析 · 数学 2007-05-23 Jiahong Wu

In this paper, we introduce a model describing the dynamic of vesicle membranes within an incompressible viscous fluid in $3D$ domains. The system consists of the Navier-Stokes equations, with an extra stress tensor depending on the…

偏微分方程分析 · 数学 2017-10-10 Blanca Climent-Ezquerra , Francisco Guillén-González