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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Numerische Mathematik 35 (1980), S. 465-478 
    ISSN: 0945-3245
    Keywords: (AMS) 65L10 ; CR 5.17
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary Let (m!)−1 D m y H denote them-th divided difference of a grid functiony H . For the numerical solution of boundary value problems of ordern we consider compact discretizations on nonuniform grids. We prove the stability inequality $$\sum\limits_{i = 0}^{n - 1} {||D_i y_H } ||_{H, \infty } \leqq c\left\{ {||L_H y_H ||_{H.1} + \sum\limits_{l = 0}^{n - 1} {|B_{H, l} (y_H )|} } \right\}$$ whereL H andB H, l are the discretizations of the differential operatorL and the boundary conditionsB l respectively and ∥·∥ H.1 denotes a discreteL 1-norm, provided the discretization is consistent. Furthermore, no condition upon the grid is needed.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Numerische Mathematik 28 (1977), S. 69-100 
    ISSN: 0945-3245
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Summary We consider two-point boundary value problems for linear differential equations (of ordern). The main part consists in proving stronger apriori estimates for $$\sum\limits_{i = 0}^m {||D_h^i y_h ||_{h, \infty } }$$ (m≦n−1) using discreteL 1-norms of the involved right-hand sides; thus extending known results for discreteL p -norms with 2≦p≦∞. These estimates are the main tool in proving sharp estimates for the error \y−y h \ h, ∞ as well asfor \P y −P h y h \ h, ∞, whereP h denotes a consistent approximation of the differential operatorP of orderm≦n−1, in terms of the discretL 1-norm of the truncation error. By means of an “interpolation technique” these estimates yield a correct estimate of the order of convergence, also in case that the solution satisfies locally some Lipschitz-conditions.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Computing 8 (1971), S. 216-220 
    ISSN: 1436-5057
    Source: Springer Online Journal Archives 1860-2000
    Topics: Computer Science
    Description / Table of Contents: Summary In this note we improve a theorem ofG. Freud concerning the convergence of theGauss-Jacobi quadrature formulae for improperly integrable functions.
    Notes: Zusammenfassung Ein Satz vonG. Freud über die Konvergenz desGauss-Jacobi-Quadraturverfahren für uneigentlicheRiemann-Stieltjes integrierbare Funktionen wird unter einer schwächeren Voraussetzung beweisen.
    Type of Medium: Electronic Resource
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  • 4
    Title: Differentialgleichungen und Numerik für Informatiker und Physiker : Skript zur Vorlesung; 8
    Author: Esser, Henning
    Contributer: Jongen, Hubertus Th.
    Publisher: Aach :Verlag der Augustinus Buchhandlung,
    Year of publication: 1994
    Pages: 122 S.
    Series Statement: Aachener Beiträge zur Mathematik 8
    Type of Medium: Book
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