A note on least squares methods
| Autor: | W. B. Richardson, Graham F. Carey |
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| Rok vydání: | 2005 |
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| Zdroj: | Communications in Numerical Methods in Engineering. 22:83-92 |
| ISSN: | 1069-8299 |
| DOI: | 10.1002/cnm.780 |
| Popis: | We examine the relationship of preconditioned L2 residual, Sobolev gradient and H−1 least squares methods. Of particular interest are: (1) a demonstration that the Sobolev gradient approach is simply a form of preconditioning for the standard L2 scheme, and (2) that the Sobolev preconditioner is related to the additional solve step in the H−1 formulation. Copyright © 2005 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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