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arXiv 2004.10669math.AP
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具有Brinkman型阻尼项的声学系统的对数镇定

Logarithmic stabilization of an acoustic system with a damping term of Brinkman type

Kaïs Ammari, Fathi Hassine, Luc Robbiano

摘要:

研究了具有空间分布阻尼的声学系统的镇定问题。在不对阻尼项的结构性质施加任何假设的情况下,我们确定了随时间增长的对数衰减的解决方案。用频域方法给出对数衰减率,并结合矛盾论证和乘子技术及新的Carleman估计对预解式进行了特殊分析。

英文摘要:

We study the problem of stabilization for the acoustic system with a spatially distributed damping. Without imposing any hypotheses on the structural properties of the damping term, we identify logarithmic decay of solutions with growing time. Logarithmic decay rate is shown by using a frequency domain method and combines a contradiction argument with the multiplier technique and a new Carleman estimate to carry out a special analysis for the resolvent.

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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