Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
1996-08-06
Nonlinear Sciences
Exactly Solvable and Integrable Systems
15 pages, plain+ams tex, to be published in Il Nuovo Cimento B
Scientific paper
10.1007/BF02743224
Kaup-Newell soliton hierarchy is derived from a kind of Lax pairs different from the original ones. Binary nonlinearization procedure corresponding to the Bargmann symmetry constraint is carried out for those Lax pairs. The proposed Lax pairs together with adjoint Lax pairs are constrained as a hierarchy of commutative, finite dimensional integrable Hamiltonian systems in the Liouville sense, which also provides us with new examples of finite dimensional integrable Hamiltonian systems. A sort of involutive solutions to the Kaup-Newell hierarchy are exhibited through the obtained finite dimensional integrable systems and the general involutive system engendered by binary nonlinearization is reduced to a specific involutive system generated by mono-nonlinearization.
Ding Qing
Lu Bao-Qun
Ma Wen-Xiu
Zhang Wei-Guo
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