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Augmentation block preconditioners for saddle point‐type matrices with singular (1, 1) blocks |
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| Authors: | Zhi‐Hao Cao |
| Affiliation: | School of Mathematical Sciences and Laboratory of Mathematics for Nonlinear Sciences, Fudan University, Shanghai 200433, People's Republic of China |
| Abstract: | |
| Keywords: | block preconditioners saddle point‐type matrices Krylov subspace iterative methods augmentation nullity |