Deflated and Augmented Krylov Subspace T
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Andrew Chapman; Yousef Saad
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Article
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1997
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John Wiley and Sons
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English
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We present a general framework for a number of techniques based on projection methods on 'augmented Krylov subspaces'. These methods include the deflated GMRES algorithm, an inner-outer FGMRES iteration algorithm, and the class of block Krylov methods. Augmented Krylov subspace methods often show a