MFWH computes several Helmholtz solutions simultaneously from one wave-equation solve using multiple time filters, with convergence theory and O(N) scaling shown on square domains.
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A Multi-Frequency Helmholtz Solver Based on the WaveHoltz Algorithm
MFWH computes several Helmholtz solutions simultaneously from one wave-equation solve using multiple time filters, with convergence theory and O(N) scaling shown on square domains.