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math.AP2014★ 2 cited
Inverse acoustic scattering problem in half-space with anisotropic random impedance
Tapio Helin, Matti Lassas, Lassi Päivärinta
We study an inverse acoustic scattering problem in half-space with a probabilistic impedance boundary value condition. The Robin coefficient (surface impedance) is assumed to be a…
math.AP2014
Strictly convex corners scatter
Lassi Päivärinta, Mikko Salo, Esa V. Vesalainen
We prove the absence of non-scattering energies for potentials in the plane having a corner of angle smaller than . This extends the earlier result of Blåsten, Päivärinta and Sy…