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- W3214556738 abstract "The incompressible Navier-Stokes equations are solved in a channel, using a Discontinuous Galerkin method over staggered grids. The resulting linear systems are studied both in terms of the structure and in terms of the spectral features of the related coefficient matrices. In fact, the resulting matrices are of block type, each block showing Toeplitz-like, band, and tensor structure at the same time. Using this rich matrix-theoretic information and the Toeplitz, Generalized Locally Toeplitz technology, a quite complete spectral analysis is presented, with the target of designing and analyzing fast iterative solvers for the associated large linear systems. Quite promising numerical results are presented, commented, and critically discussed for elongated two- and three-dimensional geometries." @default.
- W3214556738 created "2021-11-22" @default.
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- W3214556738 date "2021-11-15" @default.
- W3214556738 modified "2023-10-17" @default.
- W3214556738 title "A matrix-theoretic spectral analysis of incompressible Navier–Stokes staggered DG approximations and a related spectrally based preconditioning approach" @default.
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- W3214556738 doi "https://doi.org/10.1007/s00211-021-01247-y" @default.
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