A remark on finding the coefficient of the dissipative boundary condition via the enclosure method in the time domain

preprint2015arXivOpen access

Abstract

An inverse problem for the wave equation outside an obstacle with a {\it dissipative boundary condition} is considered. The observed data are given by a single solution of the wave equation generated by an initial data supported on an open ball. An explicit analytical formula for the computation of the coefficient at a point on the surface of the obstacle which is nearest to the center of the support of the initial data is given.

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