The reciprocity gap method for a cavity in an inhomogeneous medium (Q326427)

This paper is concerned with the inverse interior scattering problems for anisotropic media focused on reconstructing the shape of a cavity. The reciprocity gap functional method is employed where there is no need for prior computation of complicated Green's functions. Inside the cavity, both the point sources are placed and the related measurements are taken. The corresponding theory is analyzed in detail and the numerical tests performed are convincing. The results are interesting, and the paper is clearly written.