Extended shift-splitting preconditioners for saddle point problems

In this paper we consider to solve the linear systems of the saddle point problems by preconditioned Krylov subspace methods. The preconditioners are based on a special splitting of the saddle point matrix. The convergence theory of this class of the extended shift-splitting preconditioned iteration...

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Veröffentlicht in:	Journal of computational and applied mathematics 2017-03, Vol.313, p.70-81
Hauptverfasser:	Zheng, Qingqing, Lu, Linzhang
Format:	Artikel
Sprache:	eng
Schlagworte:	Applications of mathematics Convergence Convergence analysis Iterative methods Linear systems Mathematical analysis Matrices (mathematics) Matrix splitting Numerical experiments Preconditioner Saddle point problems Saddle points Spectra
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