In this paper, we propose an Euler preconditioned single-step HSS (EP-SHSS) iterative method for solving a broad class of complex symmetric linear systems. The proposed method can be applied not only to the non-singular complex symmetric linear systems but also to the singular ones. The convergence (semi-convergence) properties of the proposed method are carefully discussed under suitable restrictions. Furthermore, we consider the acceleration of the EP-SHSS method by preconditioned Krylov subspace method and discuss the spectral properties of the corresponding preconditioned matrix. Numerical experiments verify the effectiveness of the EP-SHSS method either as a solver or as a preconditioner for solving both non-singular and singular complex symmetric linear systems.
Accepté le :
DOI : 10.1051/m2an/2019029
Mots-clés : Complex symmetric linear systems, Preconditioned EP-SHSS method, convergence, Semi-convergence, Spectral properties
@article{M2AN_2019__53_5_1607_0, author = {Li, Cheng-Liang and Ma, Chang-Feng}, title = {On {Euler} preconditioned {SHSS} iterative method for a class of complex symmetric linear systems}, journal = {ESAIM: Mathematical Modelling and Numerical Analysis }, pages = {1607--1627}, publisher = {EDP-Sciences}, volume = {53}, number = {5}, year = {2019}, doi = {10.1051/m2an/2019029}, zbl = {07135564}, mrnumber = {3990652}, language = {en}, url = {http://www.numdam.org/articles/10.1051/m2an/2019029/} }
TY - JOUR AU - Li, Cheng-Liang AU - Ma, Chang-Feng TI - On Euler preconditioned SHSS iterative method for a class of complex symmetric linear systems JO - ESAIM: Mathematical Modelling and Numerical Analysis PY - 2019 SP - 1607 EP - 1627 VL - 53 IS - 5 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/m2an/2019029/ DO - 10.1051/m2an/2019029 LA - en ID - M2AN_2019__53_5_1607_0 ER -
%0 Journal Article %A Li, Cheng-Liang %A Ma, Chang-Feng %T On Euler preconditioned SHSS iterative method for a class of complex symmetric linear systems %J ESAIM: Mathematical Modelling and Numerical Analysis %D 2019 %P 1607-1627 %V 53 %N 5 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/m2an/2019029/ %R 10.1051/m2an/2019029 %G en %F M2AN_2019__53_5_1607_0
Li, Cheng-Liang; Ma, Chang-Feng. On Euler preconditioned SHSS iterative method for a class of complex symmetric linear systems. ESAIM: Mathematical Modelling and Numerical Analysis , Tome 53 (2019) no. 5, pp. 1607-1627. doi : 10.1051/m2an/2019029. http://www.numdam.org/articles/10.1051/m2an/2019029/
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