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Showing 1 to 2 of 2 for “"bi-Lanczos method"”.
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Recycling Bi-Lanczos Algorithms: BiCG, CGS, and BiCGSTAB
… linear systems. This paper introduces recycling BiCG, that recycles the Krylov subspace from one pair of linear systems to the next pair. Augmented bi-Lanczos algorithm and modified two-term recurrence are developed for using the recycle space. Recycle space is built from the approximate …
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Recycling Krylov Subspaces and Preconditioners
… Besides the benefit of only having to store few Lanczos vectors, using BiConjugate Gradients (BiCG) to solve dual linear systems may have application-specific advantages. For example, using BiCG to solve the dual linear systems arising in interpolatory model reduction provides a backward error …