On iterative methods and implicit-factorization preconditioners for regularized saddle-point systems
We consider conjugate-gradient like methods for solving block symmetric indefinite linear systems that arise from saddle point problems or, in particular, regularizations thereof. Such methods require preconditioners that preserve certain sub-blocks from the original systems but allow considerable f...
| Автори: | , , , |
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| Формат: | Report |
| Опубліковано: |
Unspecified
2005
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