A variant of the deteriorated PSS preconditioner for nonsymmetric saddle point problems
type: Item
instance of: scholarly article
title: A variant of the deteriorated PSS preconditioner for nonsymmetric saddle point problems
zbMATH Open document ID: 1342.65106
author: Chuanqing Gu
author: Ju-Li Zhang
published in: BIT
publication date: 2016-06-10T00:00:00Z
review text: The authors propose an improvement of a previously considered ``deteriorated positive definite and skew-Hermitian splitting preconditioner'' by replacing the shift term \(\alpha I\) with \(0\). In this respect, they derive sharper bounds for the real part of the eigenvalues different than \(1\). Numerical experiments of a model Navier-Stokes problem are presented to illustrate the effectiveness of the new preconditioner.
reviewed by: Constantin Popa
Mathematics Subject Classification ID: 65F08
Mathematics Subject Classification ID: 65F10
Mathematics Subject Classification ID: 65N22
Mathematics Subject Classification ID: 35Q30
zbMATH DE Number: 6591892
zbMATH Keywords: saddle-point problems
zbMATH Keywords: preconditioning
zbMATH Keywords: spectral properties
zbMATH Keywords: Krylov subspace method
zbMATH Keywords: Navier-Stokes equation
zbMATH Keywords: numerical experiment
describes a project that uses: IFISS
MaRDI profile type: Publication
full work available at URL: s10543-015-0590-9
OpenAlex ID: W2224945857
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DOI: 10.1007/S10543-015-0590-9
description: scientific article; zbMATH DE number 6591892