© 2004 by Oxford University Press
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A New Identity for (q;q)
10 with an Application to Ramanujan's Partition Congruence Modulo 11
1 Department of Mathematics, University of Illinois, 1409 West Green Street, Urbana, IL 61801, USA 2 Department of Mathematics, East China Normal University, Shanghai 200062, P. R. China 3 Department of Mathematics, University of Illinois, 1409 West Green Street, Urbana, IL 61801, USA
A new identity for the tenth power of the Dedekind eta-funtion
(z) is established. This is used to give a short proof of Ramanujan's congruence p(11n+6)
0 (mod 11) and to prove the lacunarity of
10(z). Various related identities, many connected to Eisenstein series and some from Ramanujan's lost notebook, are established.
Received 20 April 2003.