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arXiv 2603.12005math.APmath.FA
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块算子矩阵技术用于双曲方程稳定性性质的研究

Block operator matrix techniques for stability properties of hyperbolic equations

TU Bergakademie Freiberg(弗莱贝格工业大学)

Marcus Waurick

AI总结:

本文利用块算子矩阵技术研究双曲方程的稳定性,提出在较弱条件下确立强或半均匀稳定性的标准,并改进了电导率的结构要求。

摘要:

受近期关于某些波类型现象稳定性结果理论发展的启发,我们讨论了以块算子矩阵形式给出的抽象阻尼双曲类型方程,探讨其解的渐进行为。在对涉及的算子施加较弱的条件时,我们提供了确立强稳定性或半均匀稳定性的标准。在麦克斯韦方程的特例中,这些标准在底层域的正则性条件较弱时被推导出来,导致空间导数算子满足某种紧嵌入条件,并且对阻尼电导率施加了更少的假设。这些假设在正则性和电导率结构要求方面都优于文献中已有的结果。

英文摘要:

Inspired by recent developments in the theory of stability results in the context of certain wave type phenomena, we discuss abstract damped hyperbolic type equations given in a block operator matrix form with regards to asymptotic behaviour of their solutions. Under mild conditions on the operators involved we provide criteria establishing strong or semi-uniform stability. In the particular case of Maxwell's equations, these criteria are implied under mild regularity conditions of the underlying domain causing spatial derivative operators satisfy certain compact embedding conditions and rather minimal assumptions on the damping conductivity. These assumptions improve on both regularity as well as on the structural requirements for the conductivity previously available in the literature.

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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