Year: 2019
Author: Davod Hezari, Vahid Edalatpour, Hadi Feyzollahzadeh, Davod Khojasteh Salkuyeh
Journal of Computational Mathematics, Vol. 37 (2019), Iss. 1 : pp. 18–32
Abstract
For nonsymmetric saddle point problems, Huang et al. in [Numer. Algor. 75 (2017), pp. 1161-1191] established a generalized variant of the deteriorated positive semi-definite and skew-Hermitian splitting (GVDPSS) preconditioner to expedite the convergence speed of the Krylov subspace iteration methods like the GMRES method. In this paper, some new convergence properties as well as some new numerical results are presented to validate the theoretical results.
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Journal Article Details
Publisher Name: Global Science Press
Language: English
DOI: https://doi.org/10.4208/jcm.1707-m2016-0730
Journal of Computational Mathematics, Vol. 37 (2019), Iss. 1 : pp. 18–32
Published online: 2019-01
AMS Subject Headings:
Copyright: COPYRIGHT: © Global Science Press
Pages: 15
Keywords: Saddle point problem Preconditioner Nonsymmetric Symmetric Positive definite Krylov subspace method.
Author Details
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A class of modified DPSS preconditioners for generalized saddle-point linear systems
Liang, Zhao-Zheng
Zhang, Guo-Feng
Computational and Applied Mathematics, Vol. 38 (2019), Iss. 2
https://doi.org/10.1007/s40314-019-0844-2 [Citations: 1]