Q-Hahn polynomials

In mathematics, the 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.

The polynomials are given in terms of basic hypergeometric functions and the Pochhammer symbol by ${\displaystyle Q_{n}(x;a,b,N;q)=\;_{3}\phi _{2}\left[{\begin{matrix}q^{-}n&abq^{n}+1&x\\aq&q^{-}N\end{matrix}};q,q\right]}$

q-Hahn polynomials→ Quantum q-Krawtchouk polynomials：

${\displaystyle \lim _{a\to \infty }Q_{n}(q^{-}{x};a;p,N|q)=K_{n}^{qtm}(q^{-}{x};p,N;q)}$

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