The preconditioned variational methods for solving large linear systems (Q1070764)
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scientific article; zbMATH DE number 3938441
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | The preconditioned variational methods for solving large linear systems |
scientific article; zbMATH DE number 3938441 |
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The preconditioned variational methods for solving large linear systems (English)
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1985
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From authors' summary: The implementation of the preconditioned conjugate gradient method for the solution of linear systems arising from the discretization of self-adjoint elliptic boundary value problems, requires the predetermination of an optimal iteration parameter. It is shown that this parameter can be chosen in a stable manner in O(1) operations per iteration, if it is allowed to vary with the iteration index from information derived from the gradient parameters.
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preconditioned conjugate gradient method
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optimal iteration parameter
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gradient parameters
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0.92406523
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0.9110045
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0.9109965
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0.9105348
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0.90998185
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