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21: Bibliography L
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The solutions of the Mathieu equation with a complex variable and at least one parameter large.
Trans. Amer. Math. Soc. 36 (3), pp. 637–695.
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On the asymptotics of the Meixner-Pollaczek polynomials and their zeros.
Constr. Approx. 17 (1), pp. 59–90.
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Asymptotics of the first Appell function with large parameters.
Integral Transforms Spec. Funct. 24 (9), pp. 715–733.
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Uniform asymptotic expansions at a caustic.
Comm. Pure Appl. Math. 19, pp. 215–250.
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Miniaturized tables of Bessel functions. III.
Math. Comp. 26 (117), pp. 237–240 and A14–B5.
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22: Staff
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Ronald F. Boisvert, Editor at Large, NIST
Richard B. Paris, University of Abertay, Chaps. 8, 11
Diego Dominici, State University of New York at New Paltz, for Chaps. 9, 10 (deceased)
Richard B. Paris, University of Abertay Dundee, for Chaps. 8, 11 (deceased)
23: 15.13 Zeros
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►Let denote the number of zeros of in the sector .
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►If , , , , or , then is not defined, or reduces to a polynomial, or reduces to times a polynomial.
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24: 2.3 Integrals of a Real Variable
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►Without loss of generality, we assume that this minimum is at the left endpoint .
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►For the more general integral (2.3.19) we assume, without loss of generality, that the stationary point (if any) is at the left endpoint.
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►it is free from singularity at
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being the value of
at
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…with the coefficients continuous at
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25: 2.4 Contour Integrals
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►is seen to converge absolutely at each limit, and be independent of .
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►If this integral converges uniformly at each limit for all sufficiently large , then by the Riemann–Lebesgue lemma (§1.8(i))
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►Now suppose that in (2.4.10) the minimum of on occurs at an interior point .
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►Cases in which are usually handled by deforming the integration path in such a way that the minimum of is attained at a saddle point or at an endpoint.
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►with and their derivatives evaluated at
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26: 31.3 Basic Solutions
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§31.3(i) Fuchs–Frobenius Solutions at
… ►In general, one of them has a logarithmic singularity at . ►§31.3(ii) Fuchs–Frobenius Solutions at Other Singularities
… ►Solutions of (31.2.1) corresponding to the exponents and at are respectively, … ►Solutions of (31.2.1) corresponding to the exponents and at are respectively, …27: Frank W. J. Olver
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►In 1945–1961 he was a founding member of the Mathematics Division and Head of the Numerical Methods Section at the National Physical Laboratory, Teddington, U.
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►Having witnessed the birth of the computer age firsthand (as a colleague of Alan Turing at NPL, for example), Olver is also well known for his contributions to the development and analysis of numerical methods for computing special functions.
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►After leaving NIST in 1986, Olver became a professor at the Institute for Physical Science and Technology and the Department of Mathematics at the University of Maryland.
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►He also spent time as a Visiting Fellow, or Professor, at the University of Lancaster, U.
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►He continued his editing work until the time of his death on April 22, 2013 at age 88.
28: 9.19 Approximations
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Corless et al. (1992) describe a method of approximation based on subdividing into a triangular mesh, with values of , stored at the nodes. and are then computed from Taylor-series expansions centered at one of the nearest nodes. The Taylor coefficients are generated by recursion, starting from the stored values of , at the node. Similarly for , .
29: 31.11 Expansions in Series of Hypergeometric Functions
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►The Fuchs-Frobenius solutions at
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31.11.3_1
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►Then the Fuchs–Frobenius solution at
belonging to the exponent has the expansion (31.11.1) with
…and (31.11.1) converges to (31.3.10) outside the ellipse in the -plane with foci at 0, 1, and passing through the third finite singularity at
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►For example, consider the Heun function which is analytic at
and has exponent
at
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