Abstract
The aim of this paper is to investigate a class of generalised Kadomtsev–Petviashvili (KP) and B-type Kadomtsev–Petviashvili (BKP) equations, which include many important nonlinear evolution equations as its special cases. By applying the fundamental Pfaffian identity, a general Pfaffian formulation is established and all the involved generating functions for Pfaffian entries need to satisfy a system of combined linear partial differential equations. The illustrative examples of the presented Pfaffian solutions are given for the (3\(+\)1)-dimensional generalised KP, Jimbo–Miwa and BKP equations. Moreover, we use the linear superposition principle to generate exponential travelling wave solutions and mixed resonant solutions of the considered equations.
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Acknowledgements
The authors express their sincere thanks to the referees and editors for their valuable comments. This work was supported by the National Natural Science Foundation of China (No. 11371326).
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Cheng, L., Zhang, Y. & Ma, WX. Pfaffians of B-type Kadomtsev–Petviashvili equation and complexitons to a class of nonlinear partial differential equations in (3\(+\)1) dimensions. Pramana - J Phys 93, 4 (2019). https://doi.org/10.1007/s12043-019-1752-0
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DOI: https://doi.org/10.1007/s12043-019-1752-0
Keywords
- Generalised Kadomtsev–Petviashvili and B-type Kadomtsev–Petviashvili equations
- Pfaffian formulation
- sufficient conditions
- N-wave solutions
- complexitons