Some theta function identities related to

the Rogers-Ramanujan continued fraction

Author:
Seung Hwan Son

Journal:
Proc. Amer. Math. Soc. **126** (1998), 2895-2902

MSC (1991):
Primary 33D10; Secondary 11A55

MathSciNet review:
1458265

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Abstract: In his first and second letters to Hardy, Ramanujan made several assertions about the Rogers-Ramanujan continued fraction . In order to prove some of these claims, G. N. Watson established two important theorems about that he found in Ramanujan's notebooks. In his lost notebook, after stating a version of the quintuple product identity, Ramanujan offers three theta function identities, two of which contain as special cases the celebrated two theorems of Ramanujan proved by Watson. Using addition formulas, the quintuple product identity, and a new general product formula for theta functions, we prove these three identities of Ramanujan from his lost notebooks.

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Additional Information

**Seung Hwan Son**

Affiliation:
Department of Mathematics, University of Illinois at Urbana-Champaign, 1409 W. Green St., Urbana, Illinois 61801

Email:
son@math.uiuc.edu

DOI:
http://dx.doi.org/10.1090/S0002-9939-98-04516-X

Keywords:
Rogers-Ramanujan continued fraction,
Euler's pentagonal number theorem,
Jacobi triple product identity,
quintuple product identity

Received by editor(s):
February 21, 1997

Communicated by:
Dennis A. Hejhal

Article copyright:
© Copyright 1998
American Mathematical Society