Zuo-nong Zhu

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In this article, several 2+1 dimensional lattice hierarchies proposed by Blaszak and Szum [J. Math. Phys. 42, 225(2001)] are further investigated. We first describe their discrete zero curvature representations. Then, by means of solving the corresponding discrete spectral equation , we demonstrate the existence of infinitely many conservation laws for them(More)
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