Document Zbl 0913.65029

On deriving the quasi-minimal residual method. (English) Zbl 0913.65029

SIAM Rev. 40, No. 4, 922-926 (1998).

A new derivation is offered for the quasi-minimal residual method to solve systems of linear equations. A particular least squares problem is solved by a simple recursion instead of using QR decomposition.

Reviewer: F.Szidarovszky (Tucson)

Cited in 4 Documents

MSC:

65F10	Iterative numerical methods for linear systems
65F20	Numerical solutions to overdetermined systems, pseudoinverses

Keywords:

Krylov subspace iteration; quasi-minimal residual method; coupled two-term recurrences; non-Hermitian matrices; least squares problem

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