The antitriangular factorisation of saddle point matrices
Mastronardi and Van Dooren recently introduced the block antitriangular ("Batman") decomposition for symmetric indefinite matrices. Here we show the simplification of this factorisation for saddle point matrices and demonstrate how it represents the common nullspace method. We show the rel...
Main Authors: | Pestana, J, Wathen, A |
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Format: | Report |
Published: |
Unspecified
2013
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