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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Computing 41 (1989), S. 171-178 
    ISSN: 1436-5057
    Keywords: 65 F 10 ; 65 N 20 ; The Generalized Conjugate Gradient (GCG) method ; The adjusted GCG (AGCG) method ; SOR method ; Conjugate Gradient (CG) method and least squares (LS) problems
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Zusammenfassung Die verallgemeinerte Methode der konjugierten Gradienten (GCG) von Concus und Golub [1] und Widlund [2] und ihre angepaßte Form (AGCG) werden bei der numerischen Lösung von Least-Squares-Problemen untersucht. Einige numerische Vergleiche mit dem SOR-Verfahren [3] und dem CG-Verfahren [4] werden gezogen und deuten an, daß die GCG-Methode stets besser als die SOR-Methode ist und daß das AGCG-Schema allen anderen erwähnten Methoden vorzuziehen ist.
    Notes: Abstract The Generalized Conjugate Gradient (GCG) method of Concus and Golub [1] and Widlund [2] and its adjusted form (AGCG) are considered for the numerical solution of the least squares problems. Some numerical comparisons with the SOR [3] and CG [4] method are also given indicate that the GCG method is always better than the SOR [3] and that the adjusted GCG (AGCG) scheme is preferable to the CG, GCG and SOR methods.
    Type of Medium: Electronic Resource
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