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Communication Dans Un Congrès Année : 2023

Fast Direct Solvers for Integral Equations at Low-Frequency Based on Operator Filtering

Résumé

This paper focuses on fast direct solvers for integral equations in the low-to-moderate-frequency regime obtained by leveraging preconditioned first kind or second kind operators regularized with Laplacian filters. The spectral errors arising from boundary element discretizations are properly handled by filtering that, in addition, allows for the use of low-rank representations for the compact perturbations of all operators involved. Numerical results show the effectiveness of the approaches and their effectiveness in the direct solution of integral equations.
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Dates et versions

hal-04164122 , version 1 (24-07-2023)

Identifiants

Citer

Clément Henry, Davide Consoli, Alexandre Dély, Lyes Rahmouni, Adrien Merlini, et al.. Fast Direct Solvers for Integral Equations at Low-Frequency Based on Operator Filtering. 17th European Conference on Antennas and Propagation (EuCAP 2023), Mar 2023, Florence, Italy. ⟨10.23919/EuCAP57121.2023.10133635⟩. ⟨hal-04164122⟩
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