zeros of analytic functions
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11: 22.2 Definitions
§22.2 Definitions
… ►Each is meromorphic in for fixed , with simple poles and simple zeros, and each is meromorphic in for fixed . … … ►The Jacobian functions are related in the following way. … ►In terms of Neville’s theta functions (§20.1) …12: 10.72 Mathematical Applications
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►In regions in which (10.72.1) has a simple turning point , that is, and are analytic (or with weaker conditions if is a real variable) and is a simple zero of , asymptotic expansions of the solutions for large can be constructed in terms of Airy functions or equivalently Bessel functions or modified Bessel functions of order (§9.6(i)).
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13: Bibliography W
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The analyticity of Jacobian functions with respect to the parameter
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Proc. Roy. Soc. London Ser A 459, pp. 2569–2574.
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The zeros of Euler’s psi function and its derivatives.
J. Math. Anal. Appl. 332 (1), pp. 607–616.
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The distribution of the zeros of Jacobian elliptic functions with respect to the parameter
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Comput. Methods Funct. Theory 9 (2), pp. 579–591.
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Analytic Theory of Continued Fractions.
D. Van Nostrand Company, Inc., New York.
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On the zeros of a confluent hypergeometric function.
Proc. Amer. Math. Soc. 16 (2), pp. 281–283.
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14: 28.7 Analytic Continuation of Eigenvalues
§28.7 Analytic Continuation of Eigenvalues
►As functions of , and can be continued analytically in the complex -plane. …In consequence, the functions can be defined uniquely by introducing suitable cuts in the -plane. … ►All the , , can be regarded as belonging to a complete analytic function (in the large). Therefore is irreducible, in the sense that it cannot be decomposed into a product of entire functions that contain its zeros; see Meixner et al. (1980, p. 88). …15: 1.4 Calculus of One Variable
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§1.4(i) Monotonicity
… ► … ►For the functions discussed in the following DLMF chapters these two integration measures are adequate, as these special functions are analytic functions of their variables, and thus , and well defined for all values of these variables; possible exceptions being at boundary points. ►A more general concept of integrability of a function on a bounded or unbounded interval is Lebesgue integrability, which allows discussion of functions which may not be well defined everywhere (especially on sets of measure zero) for . … ►§1.4(viii) Convex Functions
…16: 16.4 Argument Unity
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►The function
is analytic in the parameters when its series expansion converges and the bottom parameters are not negative integers or zero.
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17: 2.8 Differential Equations with a Parameter
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►In Case I there are no transition points in and is analytic.
In Case II has a simple zero at and is analytic at .
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►The transformation is now specialized in such a way that: (a) and are analytic functions of each other at the transition point (if any); (b) the approximating differential equation obtained by neglecting (or part of ) has solutions that are functions of a single variable.
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►in which ranges over a bounded or unbounded interval or domain , and is or analytic on .
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►For the former has a zero of multiplicity and is analytic.
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18: Bibliography
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Complex Analysis: An Introduction of the Theory of Analytic Functions of One Complex Variable.
2nd edition, McGraw-Hill Book Co., New York.
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On the zeros of confluent hypergeometric functions. III. Characterization by means of nonlinear equations.
Lett. Nuovo Cimento (2) 29 (11), pp. 353–358.
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Zeros of Stieltjes and Van Vleck polynomials.
Trans. Amer. Math. Soc. 252, pp. 197–204.
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Hypergeometric Functions and Elliptic Integrals.
In Current Topics in Analytic Function Theory, H. M. Srivastava and S. Owa (Eds.),
pp. 48–85.
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Note on the trivial zeros of Dirichlet -functions.
Proc. Amer. Math. Soc. 94 (1), pp. 29–30.
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19: Bibliography B
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Zeros of generalized Airy functions.
Mathematika 32 (1), pp. 104–117.
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Automatic computation of zeros of Bessel functions and other special functions.
SIAM J. Sci. Comput. 21 (4), pp. 1458–1464.
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Concerning the zeros of some functions related to Bessel functions.
J. Mathematical Phys. 10 (9), pp. 1729–1744.
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Bessel Functions. Part I: Functions of Orders Zero and Unity.
Mathematical Tables, Volume 6, Cambridge University Press, Cambridge.
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An analytic continuation formula for the generalized hypergeometric function.
SIAM J. Math. Anal. 19 (5), pp. 1249–1251.
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