| Document Date: 2008-03-04 10:50:33
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City Delft / Amsterdam / A MULTIGRID / / Company Ah / Hertz / Mh / Ah Mh / not include damping in Ah / / Country United States / Netherlands / / / Facility Delft University of Technology / Tufts University / Tokyo University University of Technology / / IndustryTerm subspace algorithms / quantitative multigrid analysis tool / pressure solution / physical solution / satisfactory nearboundary solution / indefinite systems / line solutions / geophysical applications / approximate solution / mathematical imaging techniques / acoustic imaging techniques / iterative solution / Numerical solutions / numerical solution / / Organization Tokyo University University of Technology / Tufts University / Delft University of Technology / Center for Mathematics and Computer Science / / Person Fourier / / Position author / representative / Corresponding author / forward / / Product Pentax K-x Digital Camera / / Technology geophysics / converging algorithm / Krylov subspace algorithms / /
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A MULTIGRID-BASED SHIFTED-LAPLACIAN PRECONDITIONER FOR A FOURTH-ORDER HELMHOLTZ DISCRETIZATION. N.UMETANI∗, S.P.MACLACHLAN†, C.W. OOSTERLEE‡ § Abstract. In this paper, an iterative solution method for a fourth-ord