Cyclic Identities Involving Jacobi Elliptic Functions. II

Abstract

Identities involving cyclic sums of terms composed from Jacobi elliptic functions evaluated at $p$ equally shifted points on the real axis were recently found. These identities played a crucial role in discovering linear superposition solutions of a large number of important nonlinear equations. We derive four master identities, from which the identities discussed earlier are derivable as special cases. Master identities are also obtained which lead to cyclic identities with alternating signs. We discuss an extension of our results to pure imaginary and complex shifts as well as to the ratio of Jacobi theta functions.

38 pages. Modified and includes more new identities. A shorter version of this will appear in J. Math. Phys. (May 2003)

References in corpus (4)

• Linear Superposition in Nonlinear Equations
• Cyclic Identities Involving Jacobi Elliptic Functions
• Cyclic Identities Involving Jacobi Elliptic Functions. II
• Periodic Solutions of Nonlinear Equations Obtained by Linear Superposition

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