Peaks, plateaus, numerical instabilities in a Galerkin minimal residual pair of methods for solving Ax = b

Jane K. Cullum

doi:10.1016/0168-9274(95)00086-0

Applied Numerical Mathematics

Paper

01 Jan 1995

Peaks, plateaus, numerical instabilities in a Galerkin minimal residual pair of methods for solving Ax = b

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Abstract

Using a Galerkin/minimal residual pair of bidiagonalization methods for solving nonsymmetric systems of equations Ax = b, we examine the behavior of residual norm plots generated by these methods and present explanations for this behavior. © 1995.

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