Computation of conserved densities for systems of nonlinear differential-difference equations
Unal Goktas, Willy Hereman, Grant Erdmann
Abstract
A new method for the computation of conserved densities of nonlinear differential-difference equations is applied to Toda lattices and discretizations of the Korteweg-de Vries and nonlinear Schrodinger equations. The algorithm, which can be implemented in computer algebra languages such as Mathematica, can be used as an indicator of integrability.
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