A remark on the single scattering preconditioner applied to boundary integral equations

Abstract : This article deals with boundary integral equation preconditioning for the multiple scattering problem. The focus is put on the single scattering preconditioner, corresponding to the diagonal part of the integral operator, for which two results are proved. Indeed, after applying this geometric preconditioner, it appears that, firstly, every direct integral equations become identical to each other, and secondly, that the indirect integral equation of Brakhage-Werner becomes equal to the direct integral equations, up to a change of basis. These properties imply in particular that the convergence rate of a Krylov subspaces solver will be exactly the same for every preconditioned integral equations. To illustrate this, some numerical simulations are provided at the end of the paper.
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Article dans une revue
Journal of Mathematical Analysis and Applications, Elsevier, 2014, 413 (1), pp.212 - 228. 〈10.1016/j.jmaa.2013.11.051〉
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Contributeur : Bertrand Thierry <>
Soumis le : jeudi 24 novembre 2016 - 11:10:53
Dernière modification le : vendredi 25 novembre 2016 - 01:02:08
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Bertrand Thierry. A remark on the single scattering preconditioner applied to boundary integral equations. Journal of Mathematical Analysis and Applications, Elsevier, 2014, 413 (1), pp.212 - 228. 〈10.1016/j.jmaa.2013.11.051〉. 〈hal-01402085〉

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