TY - CHAP AU - Kleefeld, A. AU - Reichwein, Elisabeth TI - Improvement of the Inside-Outside Duality Method VL - 1 CY - Cham PB - Springer International Publishing M1 - FZJ-2017-06552 SN - 978-3-319-59383-8 SP - 149-159 PY - 2017 AB - In this paper, an improvement of the inside-outside duality method is considered. The state-of-the-art approximation of the far-field operator via constant interpolation is not sufficient to obtain highly accurate interior transmission eigenvalues especially for larger wave numbers. Therefore, several different approximations of the far-field operator such as Gaussian quadrature, spherical t-design, and Lebedev quadrature are used which are shown to yield superior accuracy for the numerical calculation of interior transmission eigenvalues. LB - PUB:(DE-HGF)7 DO - DOI:10.1007/978-3-319-59384-5_13 UR - https://juser.fz-juelich.de/record/837691 ER -