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三维可压缩液晶在有界区域上强解的整体存在性和大时间行为

中文摘要英文摘要

本文主要研究了三维有界域中可压缩简化版Ericksen--Leslie系统初边值问题。当初值在\\$H^2$~Sobolev空间小扰动时, 得到了有界区域上可压缩液晶模型强解的整体存在性以及大时间行为。首先利用能量方法做解的低阶能量估计以及区域内部高阶能量估计,再利用边界拉平技巧,在新的局部坐标系推导边界附近的高阶能量估计。最后基于已有的局部解和推导出的先验估计把局部解延拓到整体解,从而证明有界区域上可压缩液晶模型强解的整体存在性和大时间行为。

his paper mainly studies the initial boundary value problem of a compressible simplified version of Ericksen Leslie system in a three-dimensional bounded domain. The global existence and large time behavior of strong solutions for compressible liquid crystal models on bounded regions are obtained when the initial value is close to a equilibrium state in $H^2$ Sobolev space. Initially, the energy method is employed to derive low--order energy estimates for the solution and high--order energy estimates within the interior of the domain. Subsequently, utilizing the boundary flattening technique, high--order energy estimates near the boundary are deduced in a new local coordinate system. Finally, based on the existing local solutions and derived prior estimates, the local solutions are extended to the global solution, thereby proving the global existence and long-term behavior of strong solutions for compressible liquid crystal models on bounded regions.

皮笑寒、许秋菊

重庆师范大学数学科学学院,重庆 401331重庆师范大学数学科学学院,重庆 401331

数学

应用数学简化版Ericksen--Leslie系统有界区域整体存在性大时间行为

pplied mathematicsThe simplified Ericksen--Leslie systemThe global existenceLarge time behaviorA bounded domain

皮笑寒,许秋菊.三维可压缩液晶在有界区域上强解的整体存在性和大时间行为[EB/OL].(2025-06-11)[2025-06-22].http://www.paper.edu.cn/releasepaper/content/202506-21.点此复制

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