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Straubhaar, Julien

Nom
Straubhaar, Julien
Affiliation principale
Site web
Email
julien.straubhaar@unine.ch
Identifiants
https://libra.unine.ch/handle/123456789/151
_
0000-0003-2718-4332

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  • Publication
    Accès libre
    Preconditioners for the conjugate gradient algorithm using Gram–Schmidt and least squares methods
    Straubhaar, Julien 
    This paper is devoted to the study of some preconditioners for the conjugate gradient algorithm used to solve large sparse linear and symmetric positive definite systems. The construction of a preconditioner based on the Gram–Schmidt orthogonalization process and the least squares method is presented. Some results on the condition number of the preconditioned system are provided. Finally, numerical comparisons are given for different preconditioners.