On the quintuple product identity

Hershel M. Farkas*, Irwin Kra

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

In this note we present a new proof of the quintuple product identity which is based on our study of kth 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.

Original languageEnglish
Pages (from-to)771-778
Number of pages8
JournalProceedings of the American Mathematical Society
Volume127
Issue number3
DOIs
StatePublished - 1999

Keywords

  • Euler pentagonal number theorem
  • Jacobi triple product
  • K order theta functions with characteristics
  • Partitions of integers
  • q-series

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