1983 Volume 52 Issue 3 Pages 749-760
The trace method which has been proposed by one of the authors (M.W.) and Sawada is applied to the Kadomtsev-Petviashvili equation with negative dispersion. The N-soliton solution and the Gelfand-Levitan equation are derived through the trace method. Soliton resonances are studied. It is found that the soliton resonance occurs when a virtual soliton in soliton solution turns into exact 1-soliton. Furthermore some interesting examples of soliton resonance related to 3-soliton solution are pointed out.
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