The quadratic-form identity for constructing Hamiltonian structures of the NLS–MKdV hierarchy and multi-component Levi hierarchy

Huan-he Dong and Xiang-rong Wang

Chaos, Solitons & Fractals, 2008, vol. 37, issue 1, 245-251

Abstract: The trace identity is extended to the quadratic-form identity. The Hamiltonian structures of the NLS–MKdV hierarchy, and integrable coupling of multi-component Levi hierarchy are obtained by the quadratic-form identity. The method can be used to produce the Hamiltonian structures of the other integrable couplings or multi-component hierarchies.

Date: 2008
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:37:y:2008:i:1:p:245-251

DOI: 10.1016/j.chaos.2006.08.021

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