About: Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method.

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About: Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method. Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A variant of the AINV factorized sparse approximate inverse algorithm which is applicable to any symmetric positive definite matrix. The new preconditioner is breakdown-free and, when used in conjunction with the conjugate gradient method, results in a reliable solver for highly ill-conditioned linear systems. We also investigate an alternative approach to a stable approximate inverse algorithm, based on the idea of diagonally compensated reduction of matrix entries. The results of numerical tests. A variant of the AINV factorized sparse approximate inverse algorithm which is applicable to any symmetric positive definite matrix. The new preconditioner is breakdown-free and, when used in conjunction with the conjugate gradient method, results in a reliable solver for highly ill-conditioned linear systems. We also investigate an alternative approach to a stable approximate inverse algorithm, based on the idea of diagonally compensated reduction of matrix entries. The results of numerical tests. (en)
Title	Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method. Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method. (en)
skos:prefLabel	Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method. Robust Approximate Inverse Preconditioning for the Conjugate Gradient Method. (en)
skos:notation	RIV/67985807:_____/00:06000056!RIV/2003/AV0/A06003/N
http://linked.open.../vavai/riv/strany	1318;1332
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA2030706), P(IAA2030801), P(KSK1075601), Z(AV0Z1030915)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Tůma, Miroslav
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav informatiky AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	725519
http://linked.open...ai/riv/idVysledku	RIV/67985807:_____/00:06000056
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	N/A (en)
http://linked.open.../riv/klicoveSlovo	N/A
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[D138AAF228EC]
http://linked.open...i/riv/nazevZdroje	SIAM Journal on Scientific Computing
http://linked.open...in/vavai/riv/obor	BA
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Preconditioned iterative methods for linear algebraic Tools and methods of mathematical computer science, cybernetics and information transmission Parallelization of computer processing
http://linked.open...UplatneniVysledku	2000
http://linked.open...v/svazekPeriodika	22
http://linked.open...iv/tvurceVysledku	Tůma, Miroslav Benzi, M. Cullum, J. K.
http://linked.open...n/vavai/riv/zamer	Nové informatické technologie - teoretické základy, metodologie, prostředky a aplikace
issn	1064-8275
number of pages	15 (xsd:int)

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