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A New Uzawa-Type Iteration Method for Non-Hermitian Saddle-Point Problems
Published online by Cambridge University Press: 31 January 2017
Abstract
Based on a preconditioned shift-splitting of the (1,1)-block of non-Hermitian saddle-point matrix and the Uzawa iteration method, we establish a new Uzawa-type iteration method. The convergence properties of this iteration method are analyzed. In addition, based on this iteration method, a preconditioner is proposed. The spectral properties of the preconditioned saddle-point matrix are also analyzed. Numerical results are presented to verify the robustness and the efficiency of the new iteration method and the preconditioner.
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- Copyright © Global-Science Press 2017
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