arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1110.5145math.AP
收藏

一个声学方程反问题的稳定性增强

Increasing stability in an inverse problem for the acoustic equation

Sei Nagayasu, Gunther Uhlmann, Jenn-Nan Wang

摘要:

本文研究了声波方程中确定折射率的边值问题逆问题。已知该反问题是不适定的。尽管如此,我们发现,当我们增加的频率和稳定性估计的对数型低频率的Lipschitz估计大的频率变化时,不适定性减少。

英文摘要:

In this work we study the inverse boundary value problem of determining the refractive index in the acoustic equation. It is known that this inverse problem is ill-posed. Nonetheless, we show that the ill-posedness decreases when we increase the frequency and the stability estimate changes from logarithmic type for low frequencies to a Lipschitz estimate for large frequencies.

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。

↑