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Structured Preconditioners for Nonsingular Matrices of Block Two-by-Two Structures
Block Two-by-Two Matrix Preconditioner Modied Block Relaxation Iteration Eigenvalue Distribution Positive Deniteness
2012/8/1
For the large sparse block two-by-two real nonsingular matrices, we establish a general framework of practical and ecient structured preconditioners through matrix transformation and matrix approxima...