Transformation Formulas for Bilinear Sums of Basic Hypergeometric Series

Abstract

Abstract A master formula of transformation formulas for bilinear sums of basic hypergeometric series is proposed. It is obtained from the author’s previous results on a transformation formula for Milne’s multivariate generalization of basic hypergeometric series of type A with diòerent dimensions and it can be considered as a generalization of theWhipple–Sears transformation formula for terminating balanced µh series. As an application of the master formula, the one-variable cases of some transformation formulas for bilinear sums of basic hypergeometric series are given as examples. The bilinear transformation formulas seemto be new in the literature, even in the one-variable case.