A Preconditioned MINRES method for nonsymmetric Toeplitz matrices

Circulant preconditioning for symmetric Toeplitz linear systems is well established; theoretical guarantees of fast convergence for the conjugate gradient method are descriptive of the convergence seen in computations. This has led to robust and highly efficient solvers based on use of the fast Four...

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Bibliografske podrobnosti
Main Authors: Pestana, J, Wathen, AJ
Format: Journal article
Izdano: Society for Industrial and Applied Mathematics 2015