expansions in Airy functions
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21: 18.24 Hahn Class: Asymptotic Approximations
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►This expansion is in terms of the parabolic cylinder function and its derivative.
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►This expansion is in terms of confluent hypergeometric functions.
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►Both expansions are in terms of parabolic cylinder functions.
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►Dunster (2001b) provides various asymptotic expansions for as , in terms of elementary functions or in terms of Bessel functions.
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►This expansion is uniformly valid in any compact -interval on the real line and is in terms of parabolic cylinder functions.
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22: 10.20 Uniform Asymptotic Expansions for Large Order
§10.20 Uniform Asymptotic Expansions for Large Order
… ►uniformly for in all cases, where and are the Airy functions (§9.2). … ► ►§10.20(iii) Double Asymptotic Properties
►For asymptotic properties of the expansions (10.20.4)–(10.20.6) with respect to large values of see §10.41(v).23: Bibliography V
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Airy Functions and Applications to Physics.
Second edition, Imperial College Press, London.
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Expansion of vacuum magnetic fields in toroidal harmonics.
Comput. Phys. Comm. 81 (1-2), pp. 74–90.
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Symbolic evaluation of coefficients in Airy-type asymptotic expansions.
J. Math. Anal. Appl. 269 (1), pp. 317–331.
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Expansions in products of Heine-Stieltjes polynomials.
Constr. Approx. 15 (4), pp. 467–480.
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A note on the asymptotic expansion of generalized hypergeometric functions.
Anal. Appl. (Singap.) 12 (1), pp. 107–115.
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24: 10.21 Zeros
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§10.21(vi) McMahon’s Asymptotic Expansions for Large Zeros
… ►§10.21(vii) Asymptotic Expansions for Large Order
►Let , , and be defined as in §10.21(ii) and , , , and denote the modulus and phase functions for the Airy functions and their derivatives as in §9.8. … ►Here and denote respectively the zeros of the Airy function and its derivative ; see §9.9. … ►Higher coefficients in the asymptotic expansions in this subsection can be obtained by expressing the cross-products in terms of the modulus and phase functions (§10.18), and then reverting the asymptotic expansion for the difference of the phase functions. …25: 2.2 Transcendental Equations
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►An important case is the reversion of asymptotic expansions for zeros of special functions.
In place of (2.2.1) assume that
…where and () is the coefficient of
in the asymptotic expansion of (Lagrange’s formula for the reversion of
series).
Conditions for the validity of the reversion process in
are derived in Olver (1997b, pp. 14–16).
Applications to real and complex zeros of Airy functions are given in Fabijonas and Olver (1999).
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26: 9.13 Generalized Airy Functions
§9.13 Generalized Airy Functions
… ►The distribution in and asymptotic properties of the zeros of , , , and are investigated in Swanson and Headley (1967) and Headley and Barwell (1975). … ► … ►Reid (1972) and Drazin and Reid (1981, Appendix) introduce the following contour integrals in constructing approximate solutions to the Orr–Sommerfeld equation for fluid flow: … ►27: 10.19 Asymptotic Expansions for Large Order
§10.19 Asymptotic Expansions for Large Order
►§10.19(i) Asymptotic Forms
… ►§10.19(ii) Debye’s Expansions
… ►Here and are the Airy functions (§9.2), and … ►See also §10.20(i).28: 12.11 Zeros
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§12.11(ii) Asymptotic Expansions of Large Zeros
… ►§12.11(iii) Asymptotic Expansions for Large Parameter
►For large negative values of the real zeros of , , , and can be approximated by reversion of the Airy-type asymptotic expansions of §§12.10(vii) and 12.10(viii). …Here , denoting the th negative zero of the function (see §9.9(i)). … ►where , denoting the th negative zero of the function and …29: 9.9 Zeros
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►They are denoted by , , , , respectively, arranged in ascending order of absolute value for
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§9.9(ii) Relation to Modulus and Phase
… ►§9.9(iv) Asymptotic Expansions
… ►For error bounds for the asymptotic expansions of , , , and see Pittaluga and Sacripante (1991), and a conjecture given in Fabijonas and Olver (1999). ►§9.9(v) Tables
…30: Bibliography J
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Further results on the computation of incomplete gamma functions.
In Analytic Theory of Continued Fractions, II
(Pitlochry/Aviemore, 1985), W. J. Thron (Ed.),
Lecture Notes in Math. 1199, pp. 67–89.
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Tables of Functions with Formulae and Curves.
4th edition, Dover Publications, New York.
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Numerical calculation of Bessel, Hankel and Airy functions.
Computer Physics Communications 183 (3), pp. 506–519.
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On the computation of incomplete gamma functions in the complex domain.
J. Comput. Appl. Math. 12/13, pp. 401–417.
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Asymptotic behavior of the continued fraction coefficients of a class of Stieltjes transforms including the Binet function.
In Orthogonal functions, moment theory, and continued fractions
(Campinas, 1996),
Lecture Notes in Pure and Appl. Math., Vol. 199, pp. 257–274.
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