Séminaire Lotharingien de Combinatoire, vol.
42, B42o, 12 p. (the Andrews Festschrift).
Dominique Foata and Guo Niu Han
The Triple, Quintuple and Septuple Product Identities
This paper takes up again the study of
the Jacobi triple and Watson quintuple identities that have been
derived combinatorially in several manners in the classical
literature. It also contains a proof of the recent Farkas-Kra
septuple product identity that makes use only of ``manipulatorics"
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