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11: 18.5 Explicit Representations
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►In (18.5.4_5) see §26.11 for the Fibonacci numbers .
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►In this equation is as in Table 18.3.1, (reproduced in Table 18.5.1), and , are as in Table 18.5.1.
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►For the definitions of , , and see §16.2.
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►The first of each of equations (18.5.7) and (18.5.8) can be regarded as definitions of when the conditions and are not satisfied.
…Similarly in the cases of the ultraspherical polynomials and the Laguerre polynomials we assume that , and , unless
stated otherwise.
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12: 27.2 Functions
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►Functions in this section derive their properties from the fundamental
theorem of arithmetic, which states that every integer can be represented uniquely as a product of prime powers,
…( is defined to be 0.)
Euclid’s Elements (Euclid (1908, Book IX, Proposition 20)) gives an elegant proof that there are infinitely many primes.
…It can be expressed as a sum over all primes :
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►is the sum of the th powers of the divisors of , where the exponent can be real or complex.
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13: 33.20 Expansions for Small
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►where
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33.20.4
,
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►The functions and are as in §§10.2(ii), 10.25(ii), and the coefficients are given by , , and
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►where is given by (33.14.11), (33.14.12), and
…The functions and are as in §§10.2(ii), 10.25(ii), and the coefficients are given by (33.20.6).
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14: 16.4 Argument Unity
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►The function is well-poised if
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►The function with argument unity and general values of the parameters is discussed in Bühring (1992).
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►For generalizations involving functions see Kim et al. (2013).
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►Transformations for both balanced and very well-poised are included in Bailey (1964, pp. 56–63).
A similar theory is available for very well-poised ’s which are 2-balanced.
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15: 19.24 Inequalities
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►Other inequalities can be obtained by applying Carlson (1966, Theorems 2 and 3) to (19.16.20)–(19.16.23).
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►For , , and , the complete cases of and satisfy
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►Inequalities for in Carlson (1966, Theorems 2 and 3) can be applied to (19.16.14)–(19.16.17).
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►Inequalities for and are included as special cases (see (19.16.6) and (19.16.5)).
►Other inequalities for are given in Carlson (1970).
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16: 26.13 Permutations: Cycle Notation
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►An explicit representation of can be given by the matrix:
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►is in cycle notation.
…In consequence, (26.13.2) can also be written as .
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►For the example (26.13.2), this decomposition is given by
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►Again, for the example (26.13.2) a minimal decomposition into adjacent transpositions is given by : .
17: 19.36 Methods of Computation
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►If (19.36.1) is used instead of its first five terms, then the factor in Carlson (1995, (2.2)) is changed to .
►For both and the factor in Carlson (1995, (2.18)) is changed to when the following polynomial of degree 7 (the same for both) is used instead of its first seven terms:
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►Accurate values of for near 0 can be obtained from by (19.2.6) and (19.25.13).
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can be evaluated by using (19.25.5).
…A summary for is given in Gautschi (1975, §3).
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18: 12.14 The Function
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►For the modulus functions and see §12.14(x).
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►the branch of
being zero when and defined by continuity elsewhere.
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►Other expansions, involving and , can be obtained from (12.4.3) to (12.4.6) by replacing by and by ; see Miller (1955, p. 80), and also (12.14.15) and (12.14.16).
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►where is defined in (12.14.5), and (0), , (0), and are real.
or is the modulus and or is the corresponding phase.
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19: 19.5 Maclaurin and Related Expansions
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►where is the Gauss hypergeometric function (§§15.1 and 15.2(i)).
…where is an Appell function (§16.13).
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►
19.5.5
, .
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►Series expansions of and are surveyed and improved in Van de Vel (1969), and the case of is summarized in Gautschi (1975, §1.3.2).
For series expansions of when see Erdélyi et al. (1953b, §13.6(9)).
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