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arXiv 1807.09730math.AP
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有阻尼板膜传递问题的正则性和渐近性

Regularity and asymptotic behaviour for a damped plate-membrane transmission problem

Bienvenido Barraza Martinez, Robert Denk, Jairo Hernandez Monzon, Felix Kammerlander, Max Nendel

摘要:

本文考虑一个结构阻尼板方程与一个阻尼或无阻尼波动方程通过透射条件耦合的透射问题。我们表明,指数稳定性保持在阻尼阻尼的情况下,多项式稳定性(但没有指数稳定性)保持在阻尼无阻尼的情况下。此外,我们还证明了由弱公式首次定义的解实际上具有更高的索伯列夫空间正则性。

英文摘要:

We consider a transmission problem where a structurally damped plate equation is coupled with a damped or undamped wave equation by transmission conditions. We show that exponential stability holds in the damped-damped situation and polynomial stability (but no exponential stability) holds in the damped-undamped case. Additionally, we show that the solutions first defined by the weak formulation, in fact have higher Sobolev space regularity.

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