large degree
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11: 10.19 Asymptotic Expansions for Large Order
§10.19 Asymptotic Expansions for Large Order
►§10.19(i) Asymptotic Forms
… ►§10.19(ii) Debye’s Expansions
… ►§10.19(iii) Transition Region
… ►See also §10.20(i).12: 29.20 Methods of Computation
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►These matrices are the same as those provided in §29.15(i) for the computation of Lamé polynomials with the difference that has to be chosen sufficiently large.
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►A fourth method is by asymptotic approximations by zeros of orthogonal polynomials of increasing degree.
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13: 2.8 Differential Equations with a Parameter
…
►
2.8.1
►in which is a real or complex parameter, and asymptotic solutions are needed for large
that are uniform with respect to in a point set in or .
For example, can be the order of a Bessel function or degree of an orthogonal polynomial.
…
►
2.8.3
…
►
2.8.8
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14: 30.9 Asymptotic Approximations and Expansions
…
►
§30.9(i) Prolate Spheroidal Wave Functions
… ►
30.9.1
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►The cases of large
, and of large
and large
, are studied in Abramowitz (1949).
…The behavior of for complex and large
is investigated in Hunter and Guerrieri (1982).
15: 28.34 Methods of Computation
16: 18.15 Asymptotic Approximations
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►For large
, fixed , and , Dunster (1999) gives asymptotic expansions of that are uniform in unbounded complex -domains containing .
…This reference also supplies asymptotic expansions of for large
, fixed , and .
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►The asymptotic behavior of the classical OP’s as with the degree and parameters fixed is evident from their explicit polynomial forms; see, for example, (18.2.7) and the last two columns of Table 18.3.1.
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►These approximations apply when the parameters are large, namely and (subject to restrictions) in the case of Jacobi polynomials, in the case of ultraspherical polynomials, and in the case of Laguerre polynomials.
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