Transactions of the Japan Society for Industrial and Applied Mathematics
Online ISSN : 2424-0982
ISSN-L : 0917-2246
On an Improvement of the CGS Method
Tomohiro SOGABECheng-Hai JINKuniyoshi ABEShao-Liang ZHANG
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2004 Volume 14 Issue 1 Pages 1-12

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Abstract
The Conjugate Gradient Squared method (CGS) has been proposed for solving large and sparse non-Hermitian linear systems, and it is well known that the CGS method may lead to a rather irregular convergence behaviour. In this paper, a Stabilized Conjugate Gradient Squared method (SCGS) is proposed as a variant of the CGS method. Numerical experiments indicate that the SCGS method is often more efficient than the CGS method.
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© 2004 The Japan Society for Industrial and Applied Mathematics
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