Optimum first and second order extrapolations of successive overrelaxation type methods for certain classes of matrices (Q1824983)
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scientific article; zbMATH DE number 4119487
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Optimum first and second order extrapolations of successive overrelaxation type methods for certain classes of matrices |
scientific article; zbMATH DE number 4119487 |
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Optimum first and second order extrapolations of successive overrelaxation type methods for certain classes of matrices (English)
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1989
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Sei A eine quadratische, 2-zyklische und konsistent geordnete Matrix. Die Quadrate der Eigenwerte der zu A gehörigen Jakobi-Matrix mögen auf der Strecke \(S_{\phi}=\{z:\) \(z=re^{i\phi}\), \(0\leq \mu^ 2<r\leq {\bar \mu}^ 2\}\) mit \(1\not\in S_{\phi}\) liegen. Es werden zu verschiedenen von Parametern abhängigen Iterationsverfahren zur Lösung von \(Ax=b\) optimale Parameter bestimmt. Dabei werden manchmal ein Parameter ``gut'' und nur die anderen optimal gewählt.
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weakly 2-cyclic consistently ordered
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optimum successive overrelaxation
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second order extrapolation
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Gauss-Seidel method
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comparison
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asymptotic convergence factors
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