Tri-Hamiltonian duality between the Wadati-Konno-Ichikawa hierarchy and the Song-Qu-Qiao hierarchy

Tri-Hamiltonian duality between the Wadati-Konno-Ichikawa hierarchy and the Song-Qu-Qiao hierarchy
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Wadati-Konno-Ichikawa 层级与 Song-Qu-Qiao 层级之间的三哈密顿对偶性

DOI:
10.1063/1.4801858
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发表时间:
2013-04
影响因子:
1.3
通讯作者:
Liu, Q. P.
Liu, Q. P.
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Tian, Kai;Liu, Q. P.

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对Wadati-Konno-Ichikawa(WKI)谱问题的特征值的梯度构造了一个线性特征值问题.这反过来又导致了一对相容的哈密顿算子,这赋予了WKI层次结构的双哈密顿结构。此外,这两个哈密顿算子的适当重组,或这种双哈密顿结构的对偶性,产生Camassa-Holm型耦合系统,这只不过是最近由Song,Qu和Qiao [J.Math.Phys.52,013503(2011)]10.1063/1.3530865提出的系统。
A linear eigenvalue problem is constructed for the gradients of the eigenvalue of the Wadati-Konno-Ichikawa (WKI) spectral problem. This in turn leads to a compatible pair of Hamiltonian operators, which endows the WKI hierarchy with a bi-Hamiltonian structure. Furthermore, a proper recombination of these two Hamiltonian operators, or the duality of this bi-Hamiltonian structure, generates a coupled system of Camassa-Holm type, which is nothing but a system proposed by Song, Qu, and Qiao [J. Math. Phys. 52, 013503 (2011)]10.1063/1.3530865 recently.
DOI: 10.1007/978-1-4612-2434-1_5
发表时间: 1997
期刊: --
影响因子: --
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