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11: Bibliography D
  • C. de la Vallée Poussin (1896a) Recherches analytiques sur la théorie des nombres premiers. Première partie. La fonction ζ ( s ) de Riemann et les nombres premiers en général, suivi d’un Appendice sur des réflexions applicables à une formule donnée par Riemann. Ann. Soc. Sci. Bruxelles 20, pp. 183–256 (French).
  • C. de la Vallée Poussin (1896b) Recherches analytiques sur la théorie des nombres premiers. Deuxième partie. Les fonctions de Dirichlet et les nombres premiers de la forme linéaire M x + N . Ann. Soc. Sci. Bruxelles 20, pp. 281–397 (French).
  • B. Döring (1966) Complex zeros of cylinder functions. Math. Comp. 20 (94), pp. 215–222.
  • T. M. Dunster (1989) Uniform asymptotic expansions for Whittaker’s confluent hypergeometric functions. SIAM J. Math. Anal. 20 (3), pp. 744–760.
  • A. Dzieciol, S. Yngve, and P. O. Fröman (1999) Coulomb wave functions with complex values of the variable and the parameters. J. Math. Phys. 40 (12), pp. 6145–6166.
  • 12: 36.5 Stokes Sets
    The Stokes set consists of the rays ph x = ± 2 π / 3 in the complex x -plane. … This part of the Stokes set connects two complex saddles. … Red and blue numbers in each region correspond, respectively, to the numbers of real and complex critical points that contribute to the asymptotics of the canonical integral away from the bifurcation sets. In Figure 36.5.4 the part of the Stokes surface inside the bifurcation set connects two complex saddles. The distribution of real and complex critical points in Figures 36.5.5 and 36.5.6 follows from consistency with Figure 36.5.1 and the fact that there are four real saddles in the inner regions. …
    13: 20.11 Generalizations and Analogs
    where a , b and | a b | < 1 . …
    20.11.4 f ( a , b ) = θ 3 ( z | τ ) .
    In the case z = 0 identities for theta functions become identities in the complex variable q , with | q | < 1 , 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). … However, in this case q is no longer regarded as an independent complex variable within the unit circle, because k is related to the variable τ = τ ( k ) of the theta functions via (20.9.2). …
    14: 3.8 Nonlinear Equations
    It converges locally and quadratically for both and . … has n zeros in , counting each zero according to its multiplicity. … Then the sensitivity of a simple zero z to changes in α is given by … Consider x = 20 and j = 19 . We have p ( 20 ) = 19 ! and a 19 = 1 + 2 + + 20 = 210 . …
    15: 25.12 Polylogarithms
    In the complex plane Li 2 ( z ) has a branch point at z = 1 . …
    See accompanying text
    Figure 25.12.1: Dilogarithm function Li 2 ( x ) , 20 x < 1 . Magnify
    See accompanying text
    Figure 25.12.2: Absolute value of the dilogarithm function | Li 2 ( x + i y ) | , 20 x 20 , 20 y 20 . … Magnify 3D Help
    For real or complex s and z the polylogarithm Li s ( z ) is defined by … For each fixed complex s the series defines an analytic function of z for | z | < 1 . …
    16: 12.10 Uniform Asymptotic Expansions for Large Parameter
    §12.10 Uniform Asymptotic Expansions for Large Parameter
    Here bars do not denote complex conjugates; instead …
    Modified Expansions
    17: 18.40 Methods of Computation
    18.40.4 lim N F N ( z ) = F ( z ) 1 μ 0 a b w ( x ) d x z x , z \ [ a , b ] ,
    18.40.5 F N ( z ) = 1 μ 0 n = 1 N w n z x n .
    Results of low ( 2 to 3 decimal digits) precision for w ( x ) are easily obtained for N 10 to 20 . … Equation (18.40.7) provides step-histogram approximations to a x d μ ( x ) , as shown in Figure 18.40.1 for N = 12 and 120 , shown here for the repulsive Coulomb–Pollaczek OP’s of Figure 18.39.2, with the parameters as listed therein. …
    18: 10.3 Graphics
    §10.3(ii) Real Order, Complex Variable
    See accompanying text
    Figure 10.3.14: H 5 ( 1 ) ( x + i y ) , 20 x 10 , 4 y 4 . … Magnify 3D Help
    See accompanying text
    Figure 10.3.16: H 5.5 ( 1 ) ( x + i y ) , 20 x 10 , 4 y 4 . … Magnify 3D Help
    19: Bibliography C
  • R. Chelluri, L. B. Richmond, and N. M. Temme (2000) Asymptotic estimates for generalized Stirling numbers. Analysis (Munich) 20 (1), pp. 1–13.
  • H. S. Cohl (2011) On parameter differentiation for integral representations of associated Legendre functions. SIGMA Symmetry Integrability Geom. Methods Appl. 7, pp. Paper 050, 16.
  • J. P. Coleman (1987) Polynomial approximations in the complex plane. J. Comput. Appl. Math. 18 (2), pp. 193–211.
  • M. Colman, A. Cuyt, and J. Van Deun (2011) Validated computation of certain hypergeometric functions. ACM Trans. Math. Software 38 (2), pp. Art. 11, 20.
  • M. D. Cooper, R. H. Jeppesen, and M. B. Johnson (1979) Coulomb effects in the Klein-Gordon equation for pions. Phys. Rev. C 20 (2), pp. 696–704.
  • 20: 27.2 Functions
    Euclid’s Elements (Euclid (1908, Book IX, Proposition 20)) gives an elegant proof that there are infinitely many primes. …
    27.2.10 σ α ( n ) = d | n d α ,
    is the sum of the α th powers of the divisors of n , where the exponent α can be real or complex. …
    Table 27.2.2: Functions related to division.
    n ϕ ( n ) d ( n ) σ ( n ) n ϕ ( n ) d ( n ) σ ( n ) n ϕ ( n ) d ( n ) σ ( n ) n ϕ ( n ) d ( n ) σ ( n )
    5 4 2 6 18 6 6 39 31 30 2 32 44 20 6 84
    7 6 2 8 20 8 6 42 33 20 4 48 46 22 4 72