with%20complex%20parameter
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11—20 of 25 matching pages
11: Bibliography D
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Recherches analytiques sur la théorie des nombres premiers. Première partie. La fonction 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).
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Recherches analytiques sur la théorie des nombres premiers. Deuxième partie. Les fonctions de Dirichlet et les nombres premiers de la forme linéaire
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Ann. Soc. Sci. Bruxelles 20, pp. 281–397 (French).
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Complex zeros of cylinder functions.
Math. Comp. 20 (94), pp. 215–222.
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Uniform asymptotic expansions for Whittaker’s confluent hypergeometric functions.
SIAM J. Math. Anal. 20 (3), pp. 744–760.
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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
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►The Stokes set consists of the rays in the complex
-plane.
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►This part of the Stokes set connects two complex saddles.
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►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.
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13: 20.11 Generalizations and Analogs
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►where and .
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20.11.4
►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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20.11.5
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14: 3.8 Nonlinear Equations
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►It converges locally and quadratically for both and .
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►has zeros in , counting each zero according to its multiplicity.
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►Then the sensitivity of a simple zero to changes in is given by
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►Consider and .
We have and .
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15: 25.12 Polylogarithms
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►In the complex plane has a branch point at .
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►For real or complex
and the polylogarithm
is defined by
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►For each fixed complex
the series defines an analytic function of for .
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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
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18.40.4
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18.40.5
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►Results of low ( to decimal digits) precision for are easily obtained for to .
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►Equation (18.40.7) provides step-histogram approximations to , as shown in Figure 18.40.1 for and , shown here for the repulsive Coulomb–Pollaczek OP’s of Figure 18.39.2, with the parameters as listed therein.
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18: 10.3 Graphics
19: Bibliography C
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Asymptotic estimates for generalized Stirling numbers.
Analysis (Munich) 20 (1), pp. 1–13.
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On parameter differentiation for integral representations of associated Legendre functions.
SIGMA Symmetry Integrability Geom. Methods Appl. 7, pp. Paper 050, 16.
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Polynomial approximations in the complex plane.
J. Comput. Appl. Math. 18 (2), pp. 193–211.
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Validated computation of certain hypergeometric functions.
ACM Trans. Math. Software 38 (2), pp. Art. 11, 20.
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Coulomb effects in the Klein-Gordon equation for pions.
Phys. Rev. C 20 (2), pp. 696–704.
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