The Hille-Hardy formula is a bilinear generating function, involving products of Laguerre polynomials. We use the point of view, developed in previous publications, to propose an operational method which allows a fairly direct derivation of this kind of formulae.
La formula di Hille-Hardy è una funzione generatrice bilineare relativa a prodotti di polinomi di Hermite. In questo lavoro si utilizza il punto di vista sviluppato in precedenti pubblicazioni, per proporre una derivazione diretta di tale tipo di formula.
@article{RLIN_2003_9_14_2_85_0,
author = {Giuseppe Dattoli},
title = {Derivation of the Hille-Hardy type formulae and operational methods},
journal = {Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni},
volume = {14},
year = {2003},
pages = {85-90},
zbl = {1072.33006},
mrnumber = {2053659},
language = {en},
url = {http://dml.mathdoc.fr/item/RLIN_2003_9_14_2_85_0}
}
Dattoli, Giuseppe. Derivation of the Hille-Hardy type formulae and operational methods. Atti della Accademia Nazionale dei Lincei. Classe di Scienze Fisiche, Matematiche e Naturali. Rendiconti Lincei. Matematica e Applicazioni, Tome 14 (2003) pp. 85-90. http://gdmltest.u-ga.fr/item/RLIN_2003_9_14_2_85_0/
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