Print Email Facebook Twitter Efficient iterative methods for multi-frequency wave propagation problems Title Efficient iterative methods for multi-frequency wave propagation problems: A comparison study Author Baumann, M.M. (TU Delft Numerical Analysis) van Gijzen, M.B. (TU Delft Numerical Analysis) Date 2017 Abstract In this paper we present a comparison study for three different iterative Krylov methods that we have recently developed for the simultaneous numerical solution of wave propagation problems at multiple frequencies. The three approaches have in common that they require the application of a single shift-and-invert preconditioner at a suitable seed frequency. The focus of the present work, however, lies on the performance of the respective iterative method. We conclude with numerical examples that provide guidance concerning the suitability of the three methods. Subject Time-harmonic elastic wave equationglobal GMRESmulti-shift GMRESshifted Neumann preconditionernested multi-shift Krylov methods To reference this document use: http://resolver.tudelft.nl/uuid:b3810eb3-8314-4f08-b173-baeeeec62efb Publisher Elsevier Source International Conference on Computational Science, ICCS 2017 Event ICCS 2017, 2017-06-12 → 2017-06-14, Zürich, Switzerland Series Procedia Computer Science, 1877-0509, 108C Part of collection Institutional Repository Document type conference paper Rights © 2017 M.M. Baumann, M.B. van Gijzen Files PDF 35661916.pdf 739.58 KB Close viewer /islandora/object/uuid:b3810eb3-8314-4f08-b173-baeeeec62efb/datastream/OBJ/view