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本文对于通常证明中引入的造成困难的因子λ-1,证明不仅应当略去,而且在略去后,同样可以得到与Takhtajan方程等价的结果,只在λ=0处有预料到的修正。同时,给出了反散射解法的解满足铁磁链方程的普遍验证。In current deductions of the inverse scattering method for solving the equation of a ferromagnetic chain, the factor λ-1 brings about difficulties. In this note, we show that this factor should be dropped and an equivalent result to the Takhtajan's equation can be obtained, except for some expected corrections at point λ = 0. It is also verified that the solutions given by the ISM satisfy the equation of a ferromagnetic chain.
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