1980 Volume 48 Issue 1 Pages 319-325
The trace method which has been proposed in a recent paper by the authors is applied to the modified Korteweg-de Vries equation. It is shown that the N-soliton solution is put into a compact form using a trace of matrix. It is also shown that a field theoretical representation for the N-soliton solution yields a simple derivation of the Gelfand-Levitan equation.
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