Abstract
By means of the Ablowitz–Kaup–Newell–Segur system with symbolic computation, the gauge transformation between the first-order nonisospectral and isospectral Heisenberg spectral problems is obtained. Correspondingly, the equivalence relation between the first-order nonisospectral and isospectral Heisenberg hierarchies is given. In addition, further applications and potential research directions of our method are discussed.
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