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The BiCOR and CORS iterative algorithms for solving nonsymmetric linear systems. (English) Zbl 1251.65045
The paper describes the theoretical background and computational aspects of two iterative algorithms for solving real nonsymmetric and complex non-Hermetian linear systems. These algorithms are developed from variants of the nonsymmetric Lanczos method. The convergence properties of these two methods are then analyzed using a large number of numerical experiments. The paper also includes a comparison of the two methods under examination with other common iterative algorithms for solving nonsymmetic linear systems.
MSC:
65F10Iterative methods for linear systems
65F50Sparse matrices (numerical linear algebra)