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arXiv 0905.3478math.APmath.OC
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周期区域上Korteweg-de Vries方程的控制与镇定

Control and Stabilization of the Korteweg-de Vries Equation on a Periodic Domain

Camille Laurent, Lionel Rosier, Bing-Yu Zhang

摘要:

本文旨在完成Russell和Zhang的早期工作,研究周期区域T^1上由Korteweg-de Vries方程描述的分布参数系统的内部控制问题。在他们的文章中,罗素和张证明了当控制作用在T^1的任意非空子域上时,系统是局部精确能控的和局部指数能稳的。在本文中,我们证明了该系统实际上是全局精确可控和全局指数镇定。借助于紧性传播和正则性传播在Bourgain空间中的某些性质,首先建立了相应于自然反馈律的全局指数能稳性,并给出了相应的线性系解的全局指数能稳性.然后,使用不同的反馈法,所得到的闭环系统是局部指数稳定的任意大的衰减率。进一步设计了时变反馈律,以确保具有任意大衰减率的全局指数稳定性。

英文摘要:

This paper aims at completing an earlier work of Russell and Zhang to study internal control problems for the distributed parameter system described by the Korteweg-de Vries equation on a periodic domain T^1. In their article, Russell and Zhang showed that the system is locally exactly controllable and locally exponentially stabilizable when the control acts on an arbitrary nonempty subdomain of T^1. In this paper, we show that the system is in fact globally exactly controllable and globally exponentially stabilizable. The global exponential stabilizability corresponding to a natural feedback law is first established with the aid of certain properties of propagation of compactness and propagation of regularity in Bourgain spaces for solutions of the associated linear system. Then, using a different feedback law, the resulting closed-loop system is shown to be locally exponentially stable with an arbitrarily large decay rate. A time-varying feedback law is further designed to ensure a global exponential stability with an arbitrary large decay rate.

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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