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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb. (N.S.), 1986 Volume 131(173), Number 4(12), Pages 438–464 (Mi sm1972)

This article is cited in 1 paper

On the theory of special functions and their approximations

V. K. Dzyadyk


Abstract: For general nonhomogeneous linear equations with one regular singular point, the questions of solvability, the structure of the corresponding Wronskians, and the Cauchy–Green functions are studied on a finite interval. Formulas for the resolvents of the resulting integral equations are obtained in explicit form. An effective method of constructing differential equations for the analytic parts of special functions is indicated, and an analytical method is worked out for their best asymptotic approximation, which at the same time gives a high degree of accuracy in their practical computation on computers.
Bibliography: 17 titles.

UDC: 517.5

MSC: Primary 34A45; Secondary 33A70, 41A50

Received: 27.06.1984 and 07.05.1986


 English version:
Mathematics of the USSR-Sbornik, 1988, 59:2, 429–458

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