标题：A few expanding integrable models of WKI hierarchy and their Hamiltonian structures
作者：Sun, Kaishi ;Liu, Fasheng
作者机构：[Sun, Kaishi ] College of Electrical Engineering and Automation, Shandong University of Science and Technology, Qingdao, China;[Liu, Fasheng ] College 更多
来源：Computer Modelling and New Technologies
摘要：The integrable coupling of the WKI hierarchy is obtained by the perturbation approach. With the help of a higher dimensional loop algebra, the coupling integrable couplings of the WKI hierarchy are obtained, respectively. Their Hamiltonian structures are worked out by employing the component-trace identities and variational identity.