Abstract
In a former paper [Phys. Lett. A 307 (2003) 269], we presented a further extended tanh method and applied it to the (3+1)-dimensional Jumbo–Miwa equation. Some new soliton-like and periodic-form solutions of the equation were obtained. Then we made a little adapt of the method [Chaos Solitons Fractals 17 (2003) 669]. Besides soliton-like and periodic-form solutions, the adapted method (still name it further extended tanh method) enables us to obtain rational solutions to nonlinear evolution equations (NLEEs). In this Letter, we show that this method can also be used to construct multi-soliton and multi-soliton like solutions to NLEEs.
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