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We comment on some analytical solutions to a class of Boussinesq-likeequations derived recently by means of the homotopy perturbation method (HPM).We show that one may obtain exactly the same result by means of the Taylorseries in the time variable. We derive more general results by means oftravelling waves and argue that a curious superposition principle may not be ofany mathematical or physical significance.

On the homotopy perturbation method for Boussinesq-like equations