Journal
RAMANUJAN JOURNAL
Volume 48, Issue 1, Pages 191-215Publisher
SPRINGER
DOI: 10.1007/s11139-018-0062-3
Keywords
Bibasic Heine transformation formula; U(n+1) basic hypergeometric series; An basic hypergeometric series; Ramanujan's (2)phi(1) transformations; q-Lauricella functions
Categories
Funding
- Austrian Science Fund (FWF)
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We apply Heine's method-the key idea Heine used in 1846 to derive his famous transformation formula for series-to multiple basic series over the root system of type A. In the classical case, this leads to a bibasic extension of Heine's formula, which was implicit in a paper of Andrews which he wrote in 1966. As special cases, we recover extensions of many of Ramanujan's transformations. In addition, we extend previous work of the author regarding a bibasic extension of Andrews' q-Lauricella function, and show how to obtain very general transformation formulas of this type. The results obtained include transformations of an n-fold sum into an m-fold sum.
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