Spectral and condition number estimates of the acoustic single-layer operator for low-frequency multiple scattering in dense media

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Abstract

The aim of this paper is to derive spectral and condition number estimates of the single-layer operator for low-frequency multiple scattering problems. This work extends to dense media the analysis initiated in Antoine and Thierry (in press) [19]. Estimates are obtained first in the case of circular cylinders by Fourier analysis and are next formally adapted to disks, ellipses and rectangles in the framework of boundary element methods. Numerical simulations validating the approach are also given. © 2012 Elsevier B.V. All rights reserved.

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Thierry, B., & Antoine, X. (2013). Spectral and condition number estimates of the acoustic single-layer operator for low-frequency multiple scattering in dense media. Journal of Computational and Applied Mathematics, 239(1), 380–395. https://doi.org/10.1016/j.cam.2012.09.005

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