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...
Những tác giả chính: | Dollar, H, Gould, N, Schilders, W, Wathen, A |
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Định dạng: | Report |
Được phát hành: |
Unspecified
2005
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