Indefinite block triangular preconditioner for symmetric saddle point problems
type: Item
instance of: scholarly article
title: Indefinite block triangular preconditioner for symmetric saddle point problems
zbMATH Open document ID: 1280.65030
author: Shi-Liang Wu
author: Cuixia Li
published in: Calcolo
publication date: 2013-04-15T00:00:00Z
review text: Symmetric saddle point problems are studied. In particular, block triangular preconditioners are considered, which in addition can be indefinite. For the actual calculation a Krylov space method is used and then it is important to know something about the eigenvalue distribution of the preconditioned coefficient matrix. In this paper, some earlier results about this problem are improved leading to better iterative methods. Some numerical experiments of a model Stokes problem are reported which confirm these results numerically.
Mathematics Subject Classification ID: 65F08
Mathematics Subject Classification ID: 65F10
zbMATH DE Number: 6153973
zbMATH Keywords: saddle point systems
zbMATH Keywords: triangular preconditioners
zbMATH Keywords: block triangular
zbMATH Keywords: indefinite preconditioner
zbMATH Keywords: model Stokes problems
zbMATH Keywords: Krylov space method
zbMATH Keywords: numerical experiments
reviewed by: Ludwig Elsner
describes a project that uses: IFISS
MaRDI profile type: Publication
full work available at URL: s10092-012-0054-4
OpenAlex ID: W2027327471
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DOI: 10.1007/S10092-012-0054-4
description: scientific article; zbMATH DE number 6153973