large a and b
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41—50 of 102 matching pages
41: 13.7 Asymptotic Expansions for Large Argument
§13.7 Asymptotic Expansions for Large Argument
… ►unless and . … ►§13.7(ii) Error Bounds
… ►§13.7(iii) Exponentially-Improved Expansion
… ►For extensions to hyperasymptotic expansions see Olde Daalhuis and Olver (1995a).42: 13.29 Methods of Computation
43: 28.7 Analytic Continuation of Eigenvalues
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►As functions of , and can be continued analytically in the complex -plane.
The only singularities are algebraic branch points, with and finite at these points.
…To 4D the first branch points between and are at with , and between and they are at with .
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►All the , , can be regarded as belonging to a complete analytic function (in the large).
…Analogous statements hold for , , and , also for .
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44: 2.10 Sums and Sequences
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(b)
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►for large
.
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►As a first estimate for large
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►(5.11.7) shows that the integrals around the large quarter circles vanish as .
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is real when .
Example
…45: 9.9 Zeros
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►They are denoted by , , , , respectively, arranged in ascending order of absolute value for
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►If is regarded as a continuous variable, then
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►For large
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9.9.10
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►For error bounds for the asymptotic expansions of , , , and see Pittaluga and Sacripante (1991), and a conjecture given in Fabijonas and Olver (1999).
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46: 25.11 Hurwitz Zeta Function
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►For see §24.2(iii).
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-Derivative
… ►When , (25.11.35) reduces to (25.2.3). … ►§25.11(xii) -Asymptotic Behavior
… ►Similarly, as in the sector , …47: 28.35 Tables
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•
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National Bureau of Standards (1967) includes the eigenvalues , for with , and with ; Fourier coefficients for and for , , respectively, and various values of in the interval ; joining factors , for with (but in a different notation). Also, eigenvalues for large values of . Precision is generally 8D.
48: 28.34 Methods of Computation
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(b)
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►Methods for computing the eigenvalues , , and , defined in §§28.2(v) and 28.12(i), include:
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(b)
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(b)
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(c)
49: 11.9 Lommel Functions
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►can be regarded as a generalization of (11.2.7).
…where , are arbitrary constants, is the Lommel function defined by
…and
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§11.9(iii) Asymptotic Expansion
… ►For uniform asymptotic expansions, for large and fixed , of solutions of the inhomogeneous modified Bessel differential equation that corresponds to (11.9.1) see Olver (1997b, pp. 388–390). …50: 16.13 Appell Functions
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►The following four functions of two real or complex variables and cannot be expressed as a product of two functions, in general, but they satisfy partial differential equations that resemble the hypergeometric differential equation (15.10.1):
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16.13.1
,
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16.13.4
.
►Here and elsewhere it is assumed that neither of the bottom parameters and is a nonpositive integer.
…
►For large parameter asymptotics see López et al. (2013a, b), and Ferreira et al. (2013a, b).