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تسجيل مستخدم جديدIntegral representation for Bessels functions of the first kind and Neumann series
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تأليف
Enrico De Micheli
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A Fourier-type integral representation for Bessels function of the first kind and complex order is obtained by using the Gegenbuaer extension of Poissons integral representation for the Bessel function along with a trigonometric integral representation of Gegenbauers polynomials. This representation lets us express various functions related to the incomplete gamma function in series of Bessels functions. Neumann series of Bessel functions are also considered and a new closed-form integral representation for this class of series is given. The density function of this representation is simply the analytic function on the unit circle associated with the sequence of coefficients of the Neumann series. Examples of new closed-form integral representations of special functions are also presented.
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