A two-level shifted Laplace preconditioner for Helmholtz problems: Field-of-values analysis and wavenumber-independent convergence

Ramos, Luis García; Nabben, Reinhard

doi:10.48550/arxiv.2006.08750

2020

DOI: 10.48550/arxiv.2006.08750

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A two-level shifted Laplace preconditioner for Helmholtz problems: Field-of-values analysis and wavenumber-independent convergence

Luis García Ramos¹,

Reinhard Nabben²

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A two-level shifted Laplace preconditioner for Helmholtz problems: Field-of-values analysis and wavenumber-independent convergence

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