Journal of the Physical Society of Japan
Online ISSN : 1347-4073
Print ISSN : 0031-9015
ISSN-L : 0031-9015
Integrable Four-Dimensional Nonlinear Lattice Expressed by Trilinear Form
Junta MatsukidairaJunkichi Satsuma
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1990 Volume 59 Issue 10 Pages 3413-3416

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Abstract
An exactly solvable four-dimensional lattice system is presented. The system is derived from a trilinear equation by applying dependent variable transformation, and its solutions can be expressed by a two-directional Casorati determinant. Higher-order equations are also discussed.
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