arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.14001math.AP
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局部耦合wave equations系统的精确能控性和镇定性:理论结果

Exact controllability and stabilization of locally coupled wave equations : theoretical results

Stéphane Gerbi, Chiraz Kassem, Amina Mortada, Ali Wehbe

摘要:

本文研究了两个速度耦合的波动方程系统的精确能控性和精确镇定性,系统的内部局部控制只作用于一个方程。我们区分两种情况。在第一个模型中,当波以相同的速度传播时:利用频域方法结合乘子技术,我们证明了当耦合区域满足几何控制条件GCC时,系统是指数稳定的。根据Haraux([11])的一个结果,我们建立了主要的间接能观性不等式。这一结果导致,由HUM方法,以证明整个系统是完全可控的局部分布式控制装置。在第二种情况下,当波以不同的速度传播时,我们在弱能量空间中建立了指数衰减率。因此,使用[11]的结果,系统是精确可控的。

英文摘要:

In this paper, we study the exact controllability and stabilization of a system of two wave equations coupled by velocities with an internal, local control acting on only one equation. We distinguish two cases. In the first one, when the waves propagate at the same speed: using a frequency domain approach combined with multiplier technique, we prove that the system is exponentially stable when the coupling region satisfies the geometric control condition GCC. Following a result of Haraux ([11]), we establish the main indirect observability inequality. This results leads, by the HUM method, to prove that the total system is exactly controllable by means of locally distributed control. In the second case, when the waves propagate at different speed, we establish an exponential decay rate in the weak energy space. Consequently, the system is exactly controllable using a result of [11].

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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