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arXiv 1105.0898math.APmath-phmath.MP
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弹性介质热声层析成像

Thermoacoustic Tomography in Elastic Media

Justin Tittelfitz

摘要:

研究了线性、各向同性、非齐次弹性波动方程解u在[0,T] x \partial Ω上的初始位移f的恢复问题,其中Ω \subset \R^3是包含f的支撑的有界区域.对于声波方程,这个问题被称为热声层析成像(TAT),并已得到很好的研究;对于弹性波方程,情况有点微妙,我们给出了充分条件的Lamé参数,以确保恢复是可能的。

英文摘要:

We investigate the problem of recovering the initial displacement f for a solution u of a linear, isotropic, non-homogeneous elastic wave equation, given measurements of u on [0,T] x \partial Ω, where Ω\subset\R^3 is some bounded domain containing the support of f. For the acoustic wave equation, this problem is known as thermoacoustic tomography (TAT), and has been well-studied; for the elastic wave equation, the situation is somewhat more subtle, and we give sufficient conditions on the Lamé parameters to ensure that recovery is possible.

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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