APPLIED MATHEMATICS AND COMPUTATION, cilt.158, sa.2, ss.353-358, 2004 (SCI-Expanded)
In this work, a non-linear differential equation which contains the squares of the theta functions and also satisfied by w(z) = theta(1)(z)/theta(3)(z) is established by using known properties of the theta functions theta(1), theta(2), theta(3) and theta(4). (C) 2003 Elsevier Inc. All rights reserved.