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  • 1
    Electronic Resource
    Electronic Resource
    On the degree of approximation by the operators of de la Vallée Poussin (1979)
    Springer
    Monatshefte für Mathematik 87 (1979), S. 53-64 
    Details
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract In this paper we study the degree of approximation of functionsf inC 2π andC 2π 1 by the operatorsV n ofde la Vallée Poussin. The quality of approximation is measured in terms of the modulus of continuity off andf′ respectively. Forn∈ℕ so-called exact constants of approximation are determined. Furthermore, the asymptotic behaviour of these constants is investigated asn→∞.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01470937
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