English

$q$-type Lidstone expansions and an interpolation problem for entire functions

Complex Variables 2021-09-07 v1

Abstract

In this paper, we expand functions of specific qq-exponential growth in terms of its even (odd) Askey- Wilson qq-derivatives at 00 and η=(q1/4+q1/4)/2\eta=(q^{1/4}+q^{-1/4})/2. This expansion is a qq-version of the celebrated Lidstone expansion theorem, where we expand the function in qq-analogs of Lidstone polynomials, i.e., q-Bernoulli and qq-Euler polynomials as in the classical case. We also raise and solve a qq-extension of the problem of representing an entire function of the form f(z)=g(z+1)g(z)f(z)=g(z+1)-g(z), where g(z)g(z) is also an entire function of the same order as f(z)f(z).

Keywords

Cite

@article{arxiv.2109.02500,
  title  = {$q$-type Lidstone expansions and an interpolation problem for entire functions},
  author = {Mourad E. H. Ismail and Zeinab S. I. Mansour},
  journal= {arXiv preprint arXiv:2109.02500},
  year   = {2021}
}
R2 v1 2026-06-24T05:43:10.168Z