Orthogonal polynomials and Laurent polynomials related to the Hahn-Exton q-Bessel function

Details Orthogonal polynomials and Laurent polynomials related to the Hahn-Exton q-Bessel function Orthogonal polynomials and Laurent polynomials related to the Hahn-Exton q-Bessel function

1995-02-14

arxiv.org/abs/math/9502227v1

Mathematics

Classical Analysis and ODEs

Scientific paper

Laurent polynomials related to the Hahn-Exton $q$-Bessel function, which are $q$-analogues of the Lommel polynomials, have been introduced by Koelink and Swarttouw. The explicit strong moment functional with respect to which the Laurent $q$-Lommel polynomials are orthogonal is given. The strong moment functional gives rise to two positive definite moment functionals. For the corresponding sets of orthogonal polynomials the orthogonality measure is determined using the three-term recurrence relation as a starting point. The relation between Chebyshev polynomials of the second kind and the Laurent $q$-Lommel polynomials and related functions is used to obtain estimates for the latter.

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