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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Computing 49 (1993), S. 339-347 
    ISSN: 1436-5057
    Keywords: 65F10 ; 65B99 ; Toeplitz ; iterative methods ; steepest descent ; quadratic convergence
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Zusammenfassung Wir studieren einen iterativen, lokal quadratisch konvergenten Algorithmus für die Lösung von Toeplitz-Systemen von Gleichungen von [R. P. Brent, F. G. Gustavson und D. Y. Y. Yun, “Fast solution of Toeplitz systems of equations and computation of Padé approximations”,J. Algorithms, 1:259–295, 1980]. Wir führen einen neuen iterativen Algorithmus ein, der lokal quadratisch konvergent ist, wenn er für positiv definite Toeplitz-Systeme gebraucht wird. Wir präsentieren eine Anzahl von numerischen Experimenten mit zufallsgenerierten, symmetrischen, positiv definiten Toeplitz-Matrizen. In diesen Experimenten ist unser Algorithmus entscheidend besser als der früher vorgeschlagene Algorithmus.
    Notes: Abstract We study an iterative, locally quadratically convergent algorithm for solving Toeplitz systems of equations from [R. P. Brent, F. G. Gustavson and D. Y. Y. Yun. “Fast solution of Toeplitz systems of equations and computation of Padé approximations”,J. Algorithms, 1:259–295, 1980]. We introduce a new iterative algorithm that is locally quadratically convergent when used to solve symmetric positive definite Toeplitz systems. We present a set of numerical experiments on randomly generated symmetric positive definite Toeplitz matrices. In these experiments, our algorithm performed significantly better than the previously proposed algorithm.
    Type of Medium: Electronic Resource
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