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arXiv 2209.09549math.AP
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椭圆算子的定量强唯一延拓——应用于一个逆谱问题

Quantitative strong unique continuation for elliptic operators -- application to an inverse spectral problem

Mourad Choulli

AI总结:

本文基于三球不等式和加倍不等式,定量化Koch-Tataru的强唯一延拓,并证明边界附近度量及边界谱数据一致时,两个Dirichlet-Laplace-Beltrami算子规范等价。

摘要:

基于文献[23]中建立的三球不等式和加倍不等式,我们对Koch和Tataru在文献[21]中针对具有无界低阶系数的椭圆算子所建立的强唯一延拓进行了定量化。我们还推导了特征函数的均匀定量强唯一延拓,并利用其证明:当两个Dirichlet-Laplace-Beltrami算子的对应度量在边界附近一致,且其边界谱数据在正测度子集上一致时,这两个算子是规范等价的。

英文摘要:

Based on the three-ball inequality and the doubling inequality established in [23], we quantify the strong unique continuation established by Koch and Tataru [21] for elliptic operators with unbounded lower-order coefficients. We also derive a uniform quantitative strong unique continuation for eigenfunctions that we use to prove that two Dirichlet-Laplace-Beltrami operators are gauge equivalent whenever their corresponding metrics coincide in the vicinity of the boundary and their boundary spectral data coincide on a subset of positive measure.

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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