© 2001 by London Mathematical Society
An Identity Relating a Theta Function to a Sum of Lambert Series
Mathematics Department, Pennsylvania State University 228 McAllister Building, University Park, PA 16802, USA; e-mail: andrews{at}math.psu.edu
School of Mathematical Sciences, The University of Sussex Brighton BN1 9QH; e-mail: r.p.lewis{at}sussex.ac.uk
Mathematics Department, Xinxiang Education College Xinxiang, Henan 453000, P. R. China; e-mail: xxlzg{at}public.xxptt.ha.cn
Received 1 October 1999. Revision received 4 February 2000.
We derive an identity connecting a theta function and a sum of Lambert series. As a consequence of this identity, we deduce a number of results of Jacobi, Dirichlet, Lorenz, Ramanujan and Rademacher.