Constraint preconditioning for indefinite linear systems

The problem of finding good preconditioners for the numerical solution of indefinite linear systems is considered. Special emphasis is put on preconditioners that have a 2 x 2 block structure and which incorporate the (1, 2) and (2, 1) blocks of the original matrix. Results concerning the spectrum...

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Bibliografische gegevens
Hoofdauteurs: Keller, C, Gould, N, Wathen, A
Formaat: Report
Gepubliceerd in: Unspecified 1999