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Modified HSS iteration methods for a class of complex symmetric linear systems

机译:一类复杂对称线性系统的改进的HSS迭代方法

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In this paper, we introduce and analyze a modification of the Hermitian and skew-Hermitian splitting iteration method for solving a broad class of complex symmetric linear systems. We show that the modified Hermitian and skew-Hermitian splitting (MHSS) iteration method is unconditionally convergent. Each iteration of this method requires the solution of two linear systems with real symmetric positive definite coefficient matrices. These two systems can be solved inexactly. We consider acceleration of the MHSS iteration by Krylov subspace methods. Numerical experiments on a few model problems are used to illustrate the performance of the new method. [PUBLICATION ABSTRACT]
机译:在本文中,我们介绍并分析了Hermitian和Skew-Hermitian分裂迭代方法的一种改进方案,用于解决一类复杂的对称线性系统。我们表明,改进的Hermitian和Skew-Hermitian分裂(MHSS)迭代方法是无条件收敛的。该方法的每次迭代都需要求解具有实对称正定系数矩阵的两个线性系统。这两个系统可以不精确地解决。我们考虑通过Krylov子空间方法加速MHSS迭代。通过对一些模型问题的数值实验来说明新方法的性能。 [出版物摘要]

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