Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
843480 | Nonlinear Analysis: Theory, Methods & Applications | 2009 | 11 Pages |
Abstract
In this article, by considering a discrete isospectral problem, a hierarchy of Hamiltonian lattice equations are derived. Two types of semi-direct sums of Lie algebras are proposed, using which a practicable way to construct discrete integrable couplings is introduced. As an application, two kinds of discrete integrable couplings of the resulting system are worked out.
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Authors
Hong-Xiang Yang,