The Liouville integrability of integrabl
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Qiu-lan Zhao; Xi-Xiang Xu; Xin-Yue Li
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Article
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2010
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Elsevier Science
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English
⚖ 243 KB
A hierarchy of integrable couplings of Volterra lattice equations with three potentials is proposed, which is derived from a new discrete six-by-six matrix spectral problem. Moreover, by means of the discrete variational identity on semi-direct sums of Lie algebra, the two Hamiltonian forms are dedu