On optimal improvements of classical iterative schemes for \(Z\)-matrices (Q817470)
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scientific article; zbMATH DE number 5012879
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On optimal improvements of classical iterative schemes for \(Z\)-matrices |
scientific article; zbMATH DE number 5012879 |
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On optimal improvements of classical iterative schemes for \(Z\)-matrices (English)
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16 March 2006
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The authors describe a preconditioning technique for improving the asymptotic convergence rate of Jacobi and Gauss-Seidel iterations for irreducible dominant \(Z\)- matrices. Their method is based on a multiple elimination of some off-diagonal entries. Some connections with Krylov subspace methods are also described.
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Jacobi and Gauss-Seidel iterative methods
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diagonally dominant \(Z\)- and \(M\)-matrices
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preconditioning
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convergence
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Krylov subspace methods
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