Dual q-Hahn polynomials
# Dual q-Hahn polynomials

In mathematics, the dual q-Hahn polynomials are a family of basic hypergeometric orthogonal polynomials in the basic Askey scheme. Roelof Koekoek, Peter A. Lesky, and René F. Swarttouw (2010, 14) give a detailed list of their properties.

## Definition

The polynomials are given in terms of basic hypergeometric functions. $R_{n}(q^{-x}+\gamma \delta q^{x+1},\gamma ,\delta ,N|q)=_{3}\phi _{2}\left[{\begin{matrix}q^{-n},q^{-x},\gamma \delta q^{x+1}\\\gamma q,q^{-N}\end{matrix}};q,q\right],\quad n=0,1,2,...,N$

