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Proceedings of the American Mathematical Society
Proceedings of the American Mathematical Society
ISSN 1088-6826(online) ISSN 0002-9939(print)

 

On the quintuple product identity


Authors: Hershel M. Farkas and Irwin Kra
Journal: Proc. Amer. Math. Soc. 127 (1999), 771-778
MSC (1991): Primary 30F30, 11F03; Secondary 30B99, 14H05, 05A30
MathSciNet review: 1487364
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Abstract: In this note we present a new proof of the quintuple product identity which is based on our study of $ k^{th} $ order theta functions with characteristics and the identities they satisfy. In this context the quintuple product identity is another example of an identity which when phrased in terms of theta functions, rather than infinite products and sums, has a simpler form and is much less mysterious.


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Additional Information

Hershel M. Farkas
Affiliation: Department of Mathematics, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
Email: farkas@math.huji.ac.il

Irwin Kra
Affiliation: Department of Mathematics, State University of New York at Stony Brook, Stony Brook, New York 11794
Email: irwin@math.sunysb.edu

DOI: http://dx.doi.org/10.1090/S0002-9939-99-04791-7
PII: S 0002-9939(99)04791-7
Keywords: $q$-series, $k^{th}$ order theta functions with characteristics, partitions of integers, Jacobi triple product, Euler pentagonal number theorem
Received by editor(s): June 17, 1997
Additional Notes: The second author’s research was supported in part by NSF Grant DMS 9500557. The first author’s research was supported in part by the Gabriella and Paul Rosenbaum Foundation and the Edmund Landau Center for Research in Mathematical Analysis sponsored by the Minerva Foundation Germany. Both authors were supported in part by a US-Israel BSF Grant 95-348.
Communicated by: Dennis A. Hejhal
Article copyright: © Copyright 1999 American Mathematical Society