Summary
We survey recent results on the inverse kinematic problem arising in geophysics. The question is whether one can determine the sound speed (index of refraction) of a medium by measuring the travel times of the corresponding ray paths. We emphasise the anisotropic case.
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Uhlmann, G. (2003). The Inverse Kinematic Problem in Anisotropic Media. In: Cohen, G.C., Joly, P., Heikkola, E., Neittaanmäki, P. (eds) Mathematical and Numerical Aspects of Wave Propagation WAVES 2003. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-55856-6_6
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DOI: https://doi.org/10.1007/978-3-642-55856-6_6
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