Well-Posedness of Degenerate Initial-Boundary Value Problems to a Hyperbolic-Parabolic Coupled System Arising from Nematic Liquid Crystals

IF 2.6 1区 数学 Q1 MATHEMATICS, APPLIED
Yanbo Hu, Yuusuke Sugiyama
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引用次数: 0

Abstract

This paper is focused on the local well-posedness of initial-boundary value and Cauchy problems to a one-dimensional quasilinear hyperbolic-parabolic coupled system with boundary or far field degenerate initial data. The governing system is derived from the theory of nematic liquid crystals, which couples a hyperbolic equation describing the crystal property and a parabolic equation describing the liquid property of the material. The hyperbolic equation is degenerate at the boundaries or spatial infinity, which results in the classical methods for the strictly hyperbolic-parabolic coupled systems being invalid. We introduce admissible weighted function spaces and apply the parametrix method to construct iteration mappings for these two degenerate problems separately. The local existence and uniqueness of classical solutions of the degenerate initial-boundary value and Cauchy problems are established by the contraction mapping principle in their selected function spaces. Moreover, the solutions have no loss of regularity and their existence times are independent of the spatial variable.

向列液晶双曲-抛物耦合系统退化初边值问题的适定性
本文研究了一类具有边场或远场退化初始数据的一维拟线性双曲抛物耦合系统的初边值和柯西问题的局部适定性。该控制系统由向列液晶理论推导而来,该理论耦合了描述晶体性质的双曲方程和描述材料液体性质的抛物方程。双曲型方程在边界处或空间无穷远处是退化的,这导致经典方法对严格双曲-抛物型耦合系统的求解无效。我们引入了可容许的加权函数空间,并分别应用参数矩阵法构造了这两个退化问题的迭代映射。利用收缩映射原理,建立了退化初边值问题和柯西问题经典解在其选定的函数空间中的局部存在唯一性。此外,解没有正则性损失,其存在时间与空间变量无关。
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来源期刊
CiteScore
5.10
自引率
8.00%
发文量
98
审稿时长
4-8 weeks
期刊介绍: The Archive for Rational Mechanics and Analysis nourishes the discipline of mechanics as a deductive, mathematical science in the classical tradition and promotes analysis, particularly in the context of application. Its purpose is to give rapid and full publication to research of exceptional moment, depth and permanence.
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