Bessel-function expansion
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31—40 of 96 matching pages
31: 18.24 Hahn Class: Asymptotic Approximations
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►Dunster (2001b) provides various asymptotic expansions for as , in terms of elementary functions or in terms of Bessel functions.
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32: 10.24 Functions of Imaginary Order
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33: 11.10 Anger–Weber Functions
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§11.10(viii) Expansions in Series of Products of Bessel Functions
…34: 10.21 Zeros
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§10.21(vi) McMahon’s Asymptotic Expansions for Large Zeros
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10.21.34
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§10.21(viii) Uniform Asymptotic Approximations for Large Order
… ►§10.21(x) Cross-Products
…35: 10.45 Functions of Imaginary Order
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36: 10.18 Modulus and Phase Functions
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§10.18(iii) Asymptotic Expansions for Large Argument
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10.18.18
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10.18.19
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10.18.21
►In (10.18.17) and (10.18.18) the remainder after terms does not exceed the th term in absolute value and is of the same sign, provided that for (10.18.17) and for (10.18.18).
37: 11.11 Asymptotic Expansions of Anger–Weber Functions
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11.11.2
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11.11.3
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►Lastly, corresponding asymptotic approximations and expansions for and , with or , follow from (11.10.15) and (11.10.16) and the corresponding asymptotic expansions for the Bessel functions
and ; see §10.19(ii).
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38: Bibliography W
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The asymptotic expansion of the generalized Bessel function.
Proc. London Math. Soc. (2) 38, pp. 257–270.
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39: Bibliography N
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Error Bounds for the Large-Argument Asymptotic Expansions of the Hankel and Bessel Functions.
Acta Appl. Math. 150, pp. 141–177.
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40: 10.72 Mathematical Applications
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►Bessel functions and modified Bessel functions are often used as approximants in the construction of uniform asymptotic approximations and expansions for solutions of linear second-order differential equations containing a parameter.
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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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►If has a double zero , or more generally is a zero of order , , then uniform asymptotic approximations (but not expansions) can be constructed in terms of Bessel functions, or modified Bessel functions, of order .
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►In regions in which the function
has a simple pole at and is analytic at (the case in §10.72(i)), asymptotic expansions of the solutions of (10.72.1) for large can be constructed in terms of Bessel functions and modified Bessel functions of order , where is the limiting value of as .
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