An integrable generalization of the Kaup–Newell soliton hierarchy

An integrable generalization of the Kaup–Newell soliton hierarchy
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DOI:
10.1088/0031-8949/89/8/085203
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发表时间:
2014-06
期刊:
影响因子:
2.9
通讯作者:
W. Ma;C. Shi;E. Appiah;Chunxia Li;Shoufeng Shen
W. Ma;C. Shi;E. Appiah;Chunxia Li;Shoufeng Shen
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
W. Ma;C. Shi;E. Appiah;Chunxia Li;Shoufeng Shen

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引入了与 sl 2 , R ?> 相关的 Kaup-Newell 谱问题的推广,并生成了相应的广义 Kaup-Newell 孤子方程层次。所得到的孤子层次结构的双哈密顿结构(导致公共递归算子)是通过使用迹恒等式来提供的,因此,对于新的广义孤子层次结构中的所有系统都显示了刘维尔可积性。使用计算机代数系统 Maple 来探索所涉及的双哈密顿性质。
A generalization of the Kaup–Newell spectral problem associated with sl 2 , R ?> is introduced and the corresponding generalized Kaup–Newell hierarchy of soliton equations is generated. Bi-Hamiltonian structures of the resulting soliton hierarchy, leading to a common recursion operator, are furnished by using the trace identity, and thus, the Liouville integrability is shown for all systems in the new generalized soliton hierarchy. The involved bi-Hamiltonian property is explored by using the computer algebra system Maple.