Orthogonal Basic Hypergeometric Laurent Polynomials by Mourad E.H. Ismail, Dennis Stanton

“…The Askey-Wilson polynomials are orthogonal polynomials in$x = cos heta$, which are given as a terminating $_4phi_3$ basic hypergeometric series. The non-symmetric Askey-Wilson polynomials are Laurent polynomials in $z=e^{iheta}$, which are given as a sum of two terminating $_4phi_3$'s. …”
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