On the coefficients of integrated expansions of Bessel polynomials

Authors:
E. H. Doha;H. M. Ahmed
Affiliations:
Department of Mathematics, Faculty of Science, Cairo University, Giza, Egypt;Department of Mathematics, Faculty of Industrial Education, Amiria, Cairo, Egypt
Venue:
Journal of Computational and Applied Mathematics
Year:
2006

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Abstract

A new formula expressing explicitly the integrals of Bessel polynomials of any degree and for any order in terms of the Bessel polynomials themselves is proved. Another new explicit formula relating the Bessel coefficients of an expansion for infinitely differentiable function that has been integrated an arbitrary number of times in terms of the coefficients of the original expansion of the function is also established. An application of these formulae for solving ordinary differential equations with varying coefficients is discussed.