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A NEW INTEGRABLE LATTICE HIERARCHY AND ITS TWO DISCRETE INTEGRABLE COUPLINGS

LING LI

College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China

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and

HUANHE DONG

College of Information Science and Engineering, Shandong University of Science and Technology, Qingdao 266510, China

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https://doi.org/10.1142/S0217984908016819Cited by:0 (Source: Crossref)

Abstract

Starting from a discrete isospectral problem, a hierarchy of nonlinear Liouville integrable lattice soliton equations are derived. Through enlarging associated spectral problems, two kinds of discrete integrable couplings are constructed for the resulting lattice hierarchy.

Keywords:

PACS: 02.30.Ik

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