English

On another characterization of Askey-Wilson polynomials

Classical Analysis and ODEs 2022-06-01 v2

Abstract

In this paper we show that the only sequences of orthogonal polynomials (Pn)n0(P_n)_{n\geq 0} satisfying \begin{align*} \phi(x)\mathcal{D}_q P_{n}(x)=a_n\mathcal{S}_q P_{n+1}(x) +b_n\mathcal{S}_q P_n(x) +c_n\mathcal{S}_q P_{n-1}(x), \end{align*} (cn0c_n\neq 0) where ϕ\phi is a well chosen polynomial of degree at most two, Dq\mathcal{D}_q is the Askey-Wilson operator and Sq\mathcal{S}_q the averaging operator, are the multiple of Askey-Wilson polynomials, or specific or limiting cases of them.

Keywords

Cite

@article{arxiv.2202.10167,
  title  = {On another characterization of Askey-Wilson polynomials},
  author = {D. Mbouna and A. Suzuki},
  journal= {arXiv preprint arXiv:2202.10167},
  year   = {2022}
}

Comments

arXiv admin note: text overlap with arXiv:2103.05742

R2 v1 2026-06-24T09:47:37.378Z