Approximate MLFMA as an efficient preconditioner

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buir.contributor.authorGürel, Levent
buir.contributor.authorErgül, Özgür
dc.citation.epage1292en_US
dc.citation.spage1289en_US
dc.contributor.authorMalas, Tahiren_US
dc.contributor.authorErgül, Özgüren_US
dc.contributor.authorGürel, Leventen_US
dc.coverage.spatialHonolulu, HI, USAen_US
dc.date.accessioned2016-02-08T11:43:03Z
dc.date.available2016-02-08T11:43:03Z
dc.date.issued2007en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.descriptionDate of Conference: 9-15 June 2007en_US
dc.descriptionConference Name: Antennas and Propagation Society International Symposium, IEEE 2007en_US
dc.description.abstractIn this work, we propose a preconditioner that approximates the dense system operator. For this purpose, we develop an approximate multilevel fast multipole algorithm (AMLFMA), which performs a much faster matrix-vector multiplication with some relative error compared to the original MLFMA. We use AMLFMA to solve a closely related system, which makes up the preconditioner. Then, this solution is embedded in the main solution that uses MLFMA. By taking into account the far-field elements wisely, this preconditioner proves to be much more effective compared to the near-field preconditioners.en_US
dc.identifier.doi10.1109/APS.2007.4395738en_US
dc.identifier.issn1522-3965en_US
dc.identifier.urihttp://hdl.handle.net/11693/27053en_US
dc.language.isoEnglishen_US
dc.publisherIEEEen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/APS.2007.4395738en_US
dc.source.titleProceedings of the Antennas and Propagation Society International Symposium, IEEE 2007en_US
dc.subjectMLFMAen_US
dc.subjectIntegral equationsen_US
dc.subjectLinear systemsen_US
dc.subjectRobustnessen_US
dc.subjectSparse matricesen_US
dc.subjectComputational electromagneticsen_US
dc.subjectElectromagnetic scatteringen_US
dc.subjectConvergenceen_US
dc.titleApproximate MLFMA as an efficient preconditioneren_US
dc.typeConference Paperen_US
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