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A New Nonlinear Integrable Couplings of Solioton Hierarchy and its Hamiltonian Structure with Kronecker Product

  • Li Li and Fajun Yu EMAIL logo
Published/Copyright: November 5, 2013

Abstract

It is shown that the Kronecker product can be applied to construct new nonlinear integrable coupling system of soliton equation hierarchy in this paper. A direct application to the KN spectral problem leads to a novel KN soliton equation hierarchy of nonlinear integrable coupling system, which is different from any one obtained before. Furthermore, we present the Hamiltonian structures of nonlinear integrable couplings of KN hierarchy by using a pairs from special non-semisimple matrix Lie algebras and variational identities over the associated loop algebras. It is also indicated that the study of nonlinear integrable couplings using the Kronecker product is an efficient and straightforward method.

Received: 2013-6-10
Accepted: 2013-8-28
Published Online: 2013-11-5
Published in Print: 2013-12-16

©[2013] by Walter de Gruyter Berlin Boston

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