asymptotic formula

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31: Gergő Nemes

… ►Nemes has research interests in asymptotic analysis, Écalle theory, exact WKB analysis, and special functions. ►As of September 20, 2021, Nemes performed a complete analysis and acted as main consultant for the update of the source citation and proof metadata for every formula in Chapter 25 Zeta and Related Functions. …

32: 6.18 Methods of Computation

… ►For large $x$ and $\left|z\right|$, expansions in inverse factorial series (§6.10(i)) or asymptotic expansions (§6.12) are available. The attainable accuracy of the asymptotic expansions can be increased considerably by exponential improvement. Also, other ranges of $\mathrm{ph}z$ can be covered by use of the continuation formulas of §6.4. … ►For example, the Gauss–Laguerre formula (§3.5(v)) can be applied to (6.2.2); see Todd (1954) and Tseng and Lee (1998). For an application of the Gauss–Legendre formula (§3.5(v)) see Tooper and Mark (1968). …

33: 5.11 Asymptotic Expansions

… ►For explicit formulas for $g_k$ in terms of Stirling numbers see Nemes (2013a), and for asymptotic expansions of $g_k$ as $k\to \mathrm{\infty }$ see Boyd (1994) and Nemes (2015a). …

34: 5.21 Methods of Computation

… ►An effective way of computing $\mathrm{\Gamma }\left(z\right)$ in the right half-plane is backward recurrence, beginning with a value generated from the asymptotic expansion (5.11.3). …For the left half-plane we can continue the backward recurrence or make use of the reflection formula (5.5.3). …

35: 10.49 Explicit Formulas

§10.49 Explicit Formulas

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§10.49(i) Unmodified Functions

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§10.49(ii) Modified Functions

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§10.49(iii) Rayleigh’s Formulas

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§10.49(iv) Sums or Differences of Squares

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36: 35.9 Applications

… ►These references all use results related to the integral formulas (35.4.7) and (35.5.8). … ►The asymptotic approximations of §35.7(iv) are applied in numerous statistical contexts in Butler and Wood (2002). ►In chemistry, Wei and Eichinger (1993) expresses the probability density functions of macromolecules in terms of generalized hypergeometric functions of matrix argument, and develop asymptotic approximations for these density functions. …

37: 2.3 Integrals of a Real Variable

… ►Then … ►For the Fourier integral … ►

§2.3(ii) Watson’s Lemma

… ►Then … ►

§2.3(vi) Asymptotics of Mellin Transforms

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38: 32.11 Asymptotic Approximations for Real Variables

§32.11 Asymptotic Approximations for Real Variables

… ►Connection formulas for $d$ and ${\theta }_0$ are given by … ►The connection formulas for $k$ are … ►The connection formulas relating (32.11.25) and (32.11.26) are … ►Connection formulas for $d$ and ${\theta }_0$ are given by …

39: 8.11 Asymptotic Approximations and Expansions

… ►This reference also contains explicit formulas for $b_k(\lambda )$ in terms of Stirling numbers and for the case $\lambda >1$ an asymptotic expansion for $b_k(\lambda )$ as $k\to \mathrm{\infty }$. …

40: Bibliography C

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Asymptotic behaviour of the zeros of the (generalized) Laguerre polynomial $L_n^{\alpha }(x)$ as the index $\alpha \to \mathrm{\infty }$ and limiting formula relating Laguerre polynomials of large index and large argument to Hermite polynomials. Lett. Nuovo Cimento (2) 23 (3), pp. 101–102.

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External Links:

ISSN 0024-1318, Document, MathReview (R. A. Askey)

Referenced by:

§18.7(iii).

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