http://www.cnr.it/ontology/cnr/individuo/prodotto/ID222306
An Optimal Iterative Solver for Symmetric Indefinite Systems Stemming from Mixed Approximation (Articolo in rivista)
- Type
- Label
- An Optimal Iterative Solver for Symmetric Indefinite Systems Stemming from Mixed Approximation (Articolo in rivista) (literal)
- Anno
- 2011-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1145/1916461.1916466 (literal)
- Alternative label
Silvester, David J. ; Simoncini, V. (2011)
An Optimal Iterative Solver for Symmetric Indefinite Systems Stemming from Mixed Approximation
in ACM transactions on mathematical software; ACM, Association for computing machinery, New York (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Silvester, David J. ; Simoncini, V. (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://doi.acm.org/10.1145/1916461.1916466 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Univ Manchester, Sch Math, Manchester M13 9PL, Lancs, England
Università di Bologna, Dipartimento di Matematica, Bologna, Italy (literal)
- Titolo
- An Optimal Iterative Solver for Symmetric Indefinite Systems Stemming from Mixed Approximation (literal)
- Abstract
- We discuss the design and implementation of a suit of functions for solving symmetric indefinite linear systems associated with mixed approximation of systems o PDEs. The novel feature of our iterative solver is th incorporation of error control in the natural \"energy\" norm in combination with an a posteriori estimator fo the PDE approximation error. This leads to a robust and optimally efficient stopping criterion: the iteration is terminated as soon as the algebraic error is insignificant compared to the approximation error. We describe a \"proof of concept\" MATLAB implementation of this algorithm, which we call EST_MINRES, and we illustrate its effectiveness when integrated into the Incompressible Flow Iterative Solution Software (IFISS) package. (literal)
- Editore
- Prodotto di
- Autore CNR
- Insieme di parole chiave
Incoming links:
- Prodotto
- Autore CNR di
- Editore di
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi
- Insieme di parole chiave di