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31: 18.15 Asymptotic Approximations
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►The case of (18.15.1) goes back to Darboux.
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►where is the Bessel function (§10.2(ii)), and
…For higher coefficients see Baratella and Gatteschi (1988), and for another estimate of the error term in a related expansion see Wong and Zhao (2003).
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►Here denotes the Bessel function (§10.2(ii)), denotes its envelope (§2.8(iv)), and is again an arbitrary small positive constant.
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►With the expansions in Chapter 12 are for the parabolic cylinder function , which is related to the Hermite polynomials via
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32: Bibliography V
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An integral transform involving Heun functions and a related eigenvalue problem.
SIAM J. Math. Anal. 17 (3), pp. 688–703.
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Modular hypergeometric residue sums of elliptic Selberg integrals.
Lett. Math. Phys. 58 (3), pp. 223–238.
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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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Integral relations for Lamé functions.
SIAM J. Math. Anal. 13 (6), pp. 978–987.
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Integral representations for products of Lamé functions by use of fundamental solutions.
SIAM J. Math. Anal. 15 (3), pp. 559–569.
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33: 18.34 Bessel Polynomials
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§18.34(i) Definitions and Recurrence Relation
… ►With the notation of Koekoek et al. (2010, (9.13.1)) the left-hand side of (18.34.1) has to be replaced by . …where is a modified spherical Bessel function (10.49.9), and … … ►where primes denote derivatives with respect to . …34: 19.19 Taylor and Related Series
§19.19 Taylor and Related Series
… ►The following two multivariate hypergeometric series apply to each of the integrals (19.16.14)–(19.16.18) and (19.16.20)–(19.16.23): … ►where and the summation extends over all nonnegative integers such that . … ►The number of terms in can be greatly reduced by using variables with chosen to make . …For and , has at most one term if , and two terms if or 5. …35: Bibliography D
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Computational properties of three-term recurrence relations for Kummer functions.
J. Comput. Appl. Math. 233 (6), pp. 1505–1510.
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Novel identities for simple -
symbols.
J. Mathematical Phys. 16, pp. 318–319.
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Asymptotic approximations for the Jacobi and ultraspherical polynomials, and related functions.
Methods Appl. Anal. 6 (3), pp. 21–56.
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Uniform asymptotic expansions for the reverse generalized Bessel polynomials, and related functions.
SIAM J. Math. Anal. 32 (5), pp. 987–1013.
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The Legendre Relation for Elliptic Integrals.
In Paul Halmos: Celebrating 50 Years of Mathematics, J. H. Ewing and F. W. Gehring (Eds.),
pp. 305–315.
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36: 31.16 Mathematical Applications
37: 26.8 Set Partitions: Stirling Numbers
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►where is the Pochhammer symbol: .
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§26.8(iv) Recurrence Relations
… ►Let and be the matrices with th elements , and , respectively. … ►§26.8(vi) Relations to Bernoulli Numbers
… ►For asymptotic approximations for and that apply uniformly for as see Temme (1993) and Temme (2015, Chapter 34). …38: 19.29 Reduction of General Elliptic Integrals
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►The advantages of symmetric integrals for tables of integrals and symbolic integration are illustrated by (19.29.4) and its cubic case, which replace the formulas in Gradshteyn and Ryzhik (2000, 3.147, 3.131, 3.152) after taking as the variable of integration in 3.
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►where , or 4, , and is an integer.
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►Partial fractions provide a reduction to integrals in which has at most one nonzero component, and these are then reduced to basic integrals by the recurrence relations.
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►If , then the recurrence relation (Carlson (1999, (3.5))) has the special case
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►The other recurrence relation is
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39: 11.10 Anger–Weber Functions
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§11.10(vi) Relations to Other Functions
… ► ►For , … ►where the prime on the second summation symbols means that the first term is to be halved. ►§11.10(ix) Recurrence Relations and Derivatives
…40: 30.14 Wave Equation in Oblate Spheroidal Coordinates
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►Oblate spheroidal coordinates are related to Cartesian coordinates by
…(On the use of the symbol
in place of see §1.5(ii).)
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►The wave equation (30.13.7), transformed to oblate spheroidal coordinates , admits solutions of the form (30.13.8), where satisfies the differential equation
…and , satisfy (30.13.10) and (30.13.11), respectively, with and separation constants and .
Equation (30.14.7) can be transformed to equation (30.2.1) by the substitution .
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