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1: 24.1 Special Notation
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►Unless otherwise noted, the formulas in this chapter hold for all values of the variables and , and for all nonnegative integers .
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Bernoulli Numbers and Polynomials
►The origin of the notation , , is not clear. … ►Euler Numbers and Polynomials
… ►Its coefficients were first studied in Euler (1755); they were called Euler numbers by Raabe in 1851. …2: 24.10 Arithmetic Properties
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►The denominator of is the product of all these primes .
…where , and is an arbitrary integer such that .
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►valid for fixed integers , and for all
and such that .
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►valid for fixed integers , and for all
such that
and .
…valid for fixed integers and for all
such that .
3: 33.6 Power-Series Expansions in
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►where , , and
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33.6.3
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►where and (§5.2(i)).
►The series (33.6.1), (33.6.2), and (33.6.5) converge for all finite values of .
Corresponding expansions for can be obtained by combining (33.6.5) with (33.4.3) or (33.4.4).
4: 33.8 Continued Fractions
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33.8.1
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►The continued fraction (33.8.1) converges for all finite values of , and (33.8.2) converges for all
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►If we denote and , then
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5: 33.2 Definitions and Basic Properties
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►This differential equation has a regular singularity at with indices and , and an irregular singularity of rank 1 at (§§2.7(i), 2.7(ii)).
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►The normalizing constant
is always positive, and has the alternative form
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is the Coulomb phase shift.
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and are complex conjugates, and their real and imaginary parts are given by
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►As in the case of , the solutions and are analytic functions of when .
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6: 33.9 Expansions in Series of Bessel Functions
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►where the function is as in §10.47(ii), , , and
…The series (33.9.1) converges for all finite values of and .
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►Here , , and
…The series (33.9.3) and (33.9.4) converge for all finite positive values of and .
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►For other asymptotic expansions of see Fröberg (1955, §8) and Humblet (1985).
7: 33.19 Power-Series Expansions in
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►Here is defined by (33.14.6), is defined by (33.14.11) or (33.14.12), , , and
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►The expansions (33.19.1) and (33.19.3) converge for all finite values of , except in the case of (33.19.3).
8: 33.20 Expansions for Small
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►where
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►As with and fixed,
…where is given by (33.14.11), (33.14.12), and
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►For a comprehensive collection of asymptotic expansions that cover and as and are uniform in , including unbounded values, see Curtis (1964a, §7).
These expansions are in terms of elementary functions, Airy functions, and Bessel functions of orders and .
9: 24.14 Sums
§24.14 Sums
►§24.14(i) Quadratic Recurrence Relations
… ►§24.14(ii) Higher-Order Recurrence Relations
►In the following two identities, valid for , the sums are taken over all nonnegative integers with . … ►In the next identity, valid for , the sum is taken over all positive integers with . …10: 33.23 Methods of Computation
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►In a similar manner to §33.23(iii) the recurrence relations of §§33.4 or 33.17 can be used for a range of values of the integer , provided that the recurrence is carried out in a stable direction (§3.6).
This implies decreasing for the regular solutions and increasing for the irregular solutions of §§33.2(iii) and 33.14(iii).
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►§33.8 supplies continued fractions for and .
Combined with the Wronskians (33.2.12), the values of , , and their derivatives can be extracted.
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►Bardin et al. (1972) describes ten different methods for the calculation of and , valid in different regions of the ()-plane.
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