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On Sparsity Related to the Integral Equations of 2D Electromagnetic Scattering
Linnaeus University, Faculty of Technology, Department of Physics and Electrical Engineering.ORCID iD: 0000-0003-3217-6361
2023 (English)In: Radio Science, ISSN 0048-6604, E-ISSN 1944-799X, Vol. 58, no 4, article id e2022RS007598Article in journal (Refereed) Published
Abstract [en]

The integral equations of electromagnetic scattering are often solved with the Fast Multipole Method. If the application involves multiple excitations one could instead consider methods that separate factorization and solution. The cost of an elaborate factorization could then be compensated for by an efficient solution. An approach to obtain substantial sparsity in the solution step is considered here. By using the generality provided by the integral representation, the kernel is modified so as to create sparsity in the resulting linear system. In the two modifications that are described here there is an attempt to optimize the shape of the kernel with respect to sparsity and accuracy. 

Place, publisher, year, edition, pages
New York: John Wiley & Sons, 2023. Vol. 58, no 4, article id e2022RS007598
National Category
Computational Mathematics Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Physics, Waves, Signals and Systems
Identifiers
URN: urn:nbn:se:lnu:diva-120394DOI: 10.1029/2022rs007598ISI: 000975126600001Scopus ID: 2-s2.0-85153894008OAI: oai:DiVA.org:lnu-120394DiVA, id: diva2:1752269
Available from: 2023-04-21 Created: 2023-04-21 Last updated: 2023-05-26Bibliographically approved

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Sandström, Sven-Erik

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CiteExportLink to record
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