Increasing stability in an inverse problem for the acoustic equation

Details Increasing stability in an inverse problem for the acoustic equation Increasing stability in an inverse problem for the acoustic equation

2011-10-24

arxiv.org/abs/1110.5145v1

Mathematics

Analysis of PDEs

Scientific paper

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.

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