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    Article

    On the Preconditioning Properties of RHSS Preconditioner for Saddle-Point Linear Systems

    In this paper, for the regularized Hermitian and skew-Hermitian splitting (RHSS) preconditioner introduced by Bai and Benzi (BIT Numer Math 57: 287–311, 2017) for the solution of saddle-point linear systems, we a...

    Ju-Li Zhang in Communications on Applied Mathematics and Computation (2021)

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    Article

    On the regularization matrix of the regularized DPSS preconditioner for non-Hermitian saddle-point problems

    In this work, with respect to the regularization matrix of the new regularized deteriorated positive and skew-Hermitian splitting (RDPSS) preconditioner for non-Hermitian saddle-point problems, we provide a cl...

    Ju-Li Zhang in Computational and Applied Mathematics (2020)

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    Article

    An improved block splitting preconditioner for complex symmetric indefinite linear systems

    In this paper, an improved block splitting preconditioner for a class of complex symmetric indefinite linear systems is proposed. By adopting two iteration parameters and the relaxation technique, the new prec...

    Ju-Li Zhang, Hong-Tao Fan, Chuan-Qing Gu in Numerical Algorithms (2018)