Matching Schur Complement Approximations for Certain Saddle-Point Systems

John W. Pearson () and Andy Wathen ()
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John W. Pearson: University of Edinburgh
Andy Wathen: Oxford University

A chapter in Contemporary Computational Mathematics - A Celebration of the 80th Birthday of Ian Sloan, 2018, pp 1001-1016 from Springer

Abstract: Abstract The solution of many practical problems described by mathematical models requires approximation methods that give rise to linear(ized) systems of equations, solving which will determine the desired approximation. This short contribution describes a particularly effective solution approach for a certain class of so-called saddle-point linear systems which arises in different contexts.

Keywords: Saddle Point System; Schur Complement Approximation; MINRES Algorithm; Boundary Eigenvalue; Large-scale Computational Models (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-319-72456-0_44

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DOI: 10.1007/978-3-319-72456-0_44

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