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- W4288283359 abstract "We consider time-harmonic electromagnetic scattering problems on perfectly conducting scatterers with uncertain shape. Thus, the scattered field will also be uncertain. Based on the knowledge of the two-point correlation of the domain boundary variations around a reference domain, we derive a perturbation analysis for the mean of the scattered field. Therefore, we compute the second shape derivative of the scattering problem for a single perturbation. Taking the mean, this leads to an at least third order accurate approximation with respect to the perturbation amplitude of the domain variations. To compute the required second order correction term, a tensor product equation on the domain boundary has to be solved. We discuss its discretization and efficient solution using boundary integral equations. Numerical experiments in three dimensions are presented." @default.
- W4288283359 created "2022-07-28" @default.
- W4288283359 creator A5012055655 @default.
- W4288283359 date "2019-07-11" @default.
- W4288283359 modified "2023-10-14" @default.
- W4288283359 title "A higher order perturbation approach for electromagnetic scattering problems on random domains" @default.
- W4288283359 doi "https://doi.org/10.48550/arxiv.1907.05501" @default.
- W4288283359 hasPublicationYear "2019" @default.
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