Soliton solutions by Darboux transformation and some reductions for a new Hamiltonian lattice hierarchy
- 18 June 2010
- journal article
- research article
- Published by IOP Publishing in Physica Scripta
Abstract
In this paper, we start from the discrete spectral problem and construct a lattice hierarchy by properly choosing an auxiliary spectral problem (V) over tilde (n)(m), which can reduce to the Volterra hierarchy, the Ablowitz-Ladik hierarchy, positive and negative lattice hierarchies and a new hierarchy. The new hierarchy is integrable in involutory Lax's sense and possesses multi-Hamiltonian structure. In addition, the Darboux transformation of the lattice hierarchy is obtained when the freely adjustable function epsilon((1))(n) = 0 and m = 1. Then some soliton solutions are obtained by using Darboux transformation. This method is also suitable for other more general spectral problems in mathematics and physics.This publication has 38 references indexed in Scilit:
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