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arXiv 1805.02439math.AP
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一个与液晶相关的Q-张量问题整体弱解收敛于平衡点

Convergence to equilibrium of global weak solutions for a Q-tensor problem related to liquid crystals

Blanca Climent-Ezquerra, Francisco Guillén-González

摘要:

我们研究了三维畴内液晶动态的Q张量问题。该系统由Navier-斯托克斯方程,与一个额外的应力张量取决于弹性力的液晶,再加上一个艾伦-卡恩系统的Q-张量变量。这个问题有一个耗散的时间自由能,导致,特别是证明存在的全球时间弱解。我们分析了弱解的大时间行为。利用Lojasiewicz-Simon的一个结果,证明了当时间趋于无穷大时,整个轨线收敛到一个平衡点.

英文摘要:

We study a Q-tensor problem modeling the dynamic of nematic liquid crystals in 3D domains. The system consists of the Navier-Stokes equations, with an extra stress tensor depending on the elastic forces of the liquid crystal, coupled with an Allen-Cahn system for the Q-tensor variable. This problem has a dissipative in time free-energy which leads, in particular, to prove the existence of global in time weak solutions. We analyze the large-time behavior of the weak solutions. By using a Lojasiewicz-Simon's result, we prove the convergence as time goes to infinity of the whole trajectory to a single equilibrium.

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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