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arXiv 2302.08616math.AP
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向列型液晶完整Ericksen-Leslie模型的泊肃叶流动:一般情形

The Poiseuille flow of the full Ericksen-Leslie model for nematic liquid crystals: The general Case

Geng Chen, Weishi Liu, Majed Sofiani

AI总结:

本文研究向列型液晶完整Ericksen-Leslie模型泊肃叶流动的柯西问题,将特殊情形推广到一般物理设置,证明奇点形成后全局解存在,并系统处理了具有Hölder连续扩散系数和粗糙非齐次项的抛物型PDE。

摘要:

本文研究向列型液晶完整Ericksen-Leslie模型泊肃叶流动的柯西问题。该模型是由两个偏微分方程组成的耦合系统:一个是描述向列相结晶过程的指向场拟线性波动方程,另一个是刻画材料流动性的速度场抛物型偏微分方程。我们将Chen等人({\em Arch. Ration. Mech. Anal.} {\bf 236} (2020), 839-891)中针对特殊情形的工作推广到一般物理设置。我们证明了该柯西问题在奇点形成之后仍存在全局解。在本文取得的诸多进展中,一个特别的贡献是对仅具有Hölder连续扩散系数和粗糙(比Hölder更差)非齐次项的抛物型偏微分方程进行了系统处理。

英文摘要:

In this work, we study the Cauchy problem of Poiseuille flow of the full Ericksen-Leslie model for nematic liquid crystals. The model is a coupled system of two partial differential equations: One is a quasi-linear wave equation for the director field representing the crystallization of the nematics, and the other is a parabolic PDE for the velocity field characterizing the liquidity of the material. We extend the work in [Chen, et. al. {\em Arch. Ration. Mech. Anal.} {\bf 236} (2020), 839-891] for a special case to the general physical setup. The Cauchy problem is shown to have global solutions beyond singularity formation. Among a number of progresses made in this paper, a particular contribution is a systematic treatment of a parabolic PDE with only Hölder continuous diffusion coefficient and rough (worse than Hölder) nonhomogeneous terms.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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