Abstract
A general scheme for generating a multi-component integrable equation hierarchy is proposed. A simple 3M-dimensional loop algebra is produced. By taking advantage of , a new isospectral problem is established and then by making use of the Tu scheme the multi-component Dirac equation hierarchy is obtained. Finally, an expanding loop algebra M of the loop algebra is presented. Based on the M, the multi-component integrable coupling system of the multi-component Dirac equation hierarchy is investigated. The method in this paper can be applied to other nonlinear evolution equation hierarchies.
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