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1: 36.2 Catastrophes and Canonical Integrals
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►Special cases: , fold catastrophe; , cusp catastrophe; , swallowtail catastrophe.
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§36.2(ii) Special Cases
… ►Addendum: For further special cases see §36.2(iv) … ►(rotation by in plane). … ►§36.2(iv) Addendum to 36.2(ii) Special Cases
…2: 20.7 Identities
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20.7.22
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20.7.23
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►See Lawden (1989, pp. 19–20).
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►These are specific examples of modular transformations as discussed in §23.15; the corresponding results for the general case are given by Rademacher (1973, pp. 181–183).
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20.7.34
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3: 19.36 Methods of Computation
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►The computation is slowest for complete cases.
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►Complete cases of Legendre’s integrals and symmetric integrals can be computed with quadratic convergence by the AGM method (including Bartky transformations), using the equations in §19.8(i) and §19.22(ii), respectively.
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►The step from to is an ascending Landen transformation if (leading ultimately to a hyperbolic case of ) or a descending Gauss transformation if (leading to a circular case of ).
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►Also, see Todd (1975) for a special case of .
For computation of Legendre’s integral of the third kind, see Abramowitz and Stegun (1964, §§17.7 and 17.8, Examples 15, 17, 19, and 20).
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4: 7.8 Inequalities
5: 25.12 Polylogarithms
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►When , , (25.12.1) becomes
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►The special case
is the Riemann zeta function: .
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►valid when and , or and .
(In the latter case (25.12.11) becomes (25.5.1)).
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►When and , (25.12.13) becomes (25.12.4).
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6: 36.4 Bifurcation Sets
7: 20.11 Generalizations and Analogs
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20.11.2
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►With the substitutions , , with , we have
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►In the case
identities for theta functions become identities in the complex variable , with , that involve rational functions, power series, and continued fractions; see Adiga et al. (1985), McKean and Moll (1999, pp. 156–158), and Andrews et al. (1988, §10.7).
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►However, in this case
is no longer regarded as an independent complex variable within the unit circle, because is related to the variable of the theta functions via (20.9.2).
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►For applications to rapidly convergent expansions for see Chudnovsky and Chudnovsky (1988), and for applications in the construction of elliptic-hypergeometric series see Rosengren (2004).
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8: 12.11 Zeros
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►Lastly, when , (Hermite polynomial case) has zeros and they lie in the interval .
For further information on these cases see Dean (1966).
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►When , has a string of complex zeros that approaches the ray as , and a conjugate string.
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►Numerical calculations in this case show that corresponds to the th zero on the string; compare §7.13(ii).
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12.11.9
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9: 5.11 Asymptotic Expansions
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►As in the sector ,
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►Wrench (1968) gives exact values of up to .
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►In the case
the factor is replaced with 4.
For this result and a similar bound for the sector see Boyd (1994).
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►For the error term in (5.11.19) in the case
and , see Olver (1995).
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10: Bibliography M
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Rational approximations, software and test methods for sine and cosine integrals.
Numer. Algorithms 12 (3-4), pp. 259–272.
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Exact misclassification probabilities for plug-in normal quadratic discriminant functions. I. The equal-means case.
J. Multivariate Anal. 77 (1), pp. 21–53.
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Calculation of the modified Bessel functions of the second kind with complex argument.
Math. Comp. 20 (95), pp. 407–412.
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Hierarchies and logarithmic oscillations in the temporal relaxation patterns of proteins and other complex systems.
Proc. Nat. Acad. Sci. U .S. A. 96 (20), pp. 11085–11089.
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The -analogue of the Laguerre polynomials.
J. Math. Anal. Appl. 81 (1), pp. 20–47.
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