A quadratic formula for basic hypergeometric series related to Askey-Wilson polynomials
arXiv:1212.1887
Abstract
We prove a general quadratic formula for basic hypergeometric series, from which simple proofs of several recent determinant and Pfaffian formulas are obtained. A special case of the quadratic formula is actually related to a Gram determinant formula for Askey-Wilson polynomials. We also show how to derive a recent double-sum formula for the moments of Askey-Wilson polynomials from Newton's interpolation formula.
12 pages, to appear in Proceedings of the American Mathmatical Society