Applying GMRES to the Helmholtz equation with shifted Laplacian preconditioning: what is the largest shift for which wavenumber-independent convergence is guaranteed?

Martin J. Gander, Ivan G. Graham, Euan A. Spence. Applying GMRES to the Helmholtz equation with shifted Laplacian preconditioning: what is the largest shift for which wavenumber-independent convergence is guaranteed?. Numerische Mathematik, 131(3):567-614, 2015. [doi]

Abstract

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