# Some inverse problems arising from elastic scattering by rigid obstacles

@article{Hu2012SomeIP, title={Some inverse problems arising from elastic scattering by rigid obstacles}, author={Guanghui Hu and Andreas Kirsch and Mourad Sini}, journal={Inverse Problems}, year={2012}, volume={29} }

In the first part of this paper, it is proved that a C2-regular rigid scatterer in can be uniquely identified by the shear part (i.e. S-part) of the far-field pattern corresponding to all incident shear waves at any fixed frequency. The proof is short and it is based on a kind of decoupling of the S-part of scattered wave from its pressure part (i.e. P-part) on the boundary of the scatterer. Moreover, uniqueness using the S-part of the far-field pattern corresponding to only one incident plane…

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