Semifoldons with fusion and fission properties of (2 + 1)-dimensional nonlinear system

Abstract In this paper, by virtue of q -deformed hyperbolic functions, the variable separation solution with two variable separated functions of the (2 + 1)-dimensional Broer–Kaup–Kupershmidt equation (BKKE) is obtained. Based on this variable separation solution, soliton fusion and fission phenomena among semifoldons are investigated.

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