Airy Functions and Applications to Physics - download pdf or read online

By Olivier Vallée

ISBN-10: 1860944787

ISBN-13: 9781860944789

ISBN-10: 186094535X

ISBN-13: 9781860945359

Using specific features, and specifically ethereal services, is very universal in physics. the explanation might be present in the necessity, or even within the necessity, to precise a actual phenomenon when it comes to an efficient and finished analytical shape for the entire clinical neighborhood. despite the fact that, for the previous 20 years, many actual difficulties were resolved by way of desktops. This pattern is now changing into the norm because the significance of desktops maintains to develop. As a final hotel, the targeted capabilities hired in physics must be calculated numerically, no matter if the analytic formula of physics is of basic value.

Airy services have periodically been the topic of many assessment articles, yet no noteworthy compilation in this topic has been released because the Nineteen Fifties. during this paintings, we offer an exhaustive compilation of the present wisdom at the analytical homes of ethereal features, constructing with care the calculus implying the ethereal services.

The publication is split into 2 elements: the 1st is dedicated to the mathematical homes of ethereal capabilities, when the second one provides a few purposes of ethereal capabilities to varied fields of physics. The examples supplied succinctly illustrate using ethereal capabilities in classical and quantum physics.

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Extra resources for Airy Functions and Applications to Physics

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33 Definitions and Properties However, as we have seen in the preceding paragraph an integral representation of the product A i ( z ) A i ( - Z )corresponds to the Fourier transform 1 Ai(z)Ai(-z)= - 2413~ Ai [2-4/3u2]eixUdu. 164) This product and its Fourier transform are well localized with a fast decreasing, for we have when u -+ fa. Then, this product and its Fourier transform form a couple of square integrable functions. The decreasing of the Fourier transform being faster than a Gaussian, we can consider this product as a continuous basis of wavelets [Holschneider (1995)l.

129). We obtain 1 . 1 Gi(-z) = -Bz(z) - -h(z). 141) The ascending series of Gi'(z) is deduced (like for Gi(z)) thanks t o the ascending series of Si'(-z)and Hi'(z). 142) 8! 629 1 2! 5! = -T (Xl + - +x3 - + - 3x6 Hi(-x) M 1 T X c co n=O + (-l)n(3n)! 1 3"n! x3n . 1 2! 8! 5! 143) + ... 129), we can obtain the expansion of Gi(-x) and H i ( x ) . 50). Olver (1954) gives the asymptotic series under an equivalent form 1 [ c 1 =1+ 2 73-X TX O0 (3s+2)! s! 145) , x -+ -m. 4 Zeros of the Scorer functions In an interesting paper on the zeros of the Scorer functions, Gil, Segura and Temme (2003) gave several important results on the subject.

33 Definitions and Properties However, as we have seen in the preceding paragraph an integral representation of the product A i ( z ) A i ( - Z )corresponds to the Fourier transform 1 Ai(z)Ai(-z)= - 2413~ Ai [2-4/3u2]eixUdu. 164) This product and its Fourier transform are well localized with a fast decreasing, for we have when u -+ fa. Then, this product and its Fourier transform form a couple of square integrable functions. The decreasing of the Fourier transform being faster than a Gaussian, we can consider this product as a continuous basis of wavelets [Holschneider (1995)l.

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Airy Functions and Applications to Physics by Olivier Vallée


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