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Rogue waves of a (3+1)-dimensional BKP equation |
Yu-Qiang Yuan(袁玉强)1, Xiao-Yu Wu(武晓昱)2, and Zhong Du(杜仲)3,† |
1 Department of Mathematics, China University of Mining and Technology(Beijing), Beijing 100083, China; 2 School of Science, Beijing Forestry University, Beijing 100083, China; 3 Department of Mathematics and Physics, North China Electric Power University, Baoding 071003, China |
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Abstract We investigate certain rogue waves of a (3+1)-dimensional BKP equation via the Kadomtsev-Petviashili hierarchy reduction method. We obtain semi-rational solutions in the determinant form, which contain two special interactions: (i) one lump develops from a kink soliton and then fuses into the other kink one; (ii) a line rogue wave arises from the segment between two kink solitons and then disappears quickly. We find that such a lump or line rogue wave only survives in a short time and localizes in both space and time, which performs like a rogue wave. Furthermore, the higher-order semi-rational solutions describing the interaction between two lumps (one line rogue wave) and three kink solitons are presented.
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Received: 10 March 2022
Revised: 13 April 2022
Accepted manuscript online: 20 April 2022
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PACS:
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02.30.Ik
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(Integrable systems)
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04.20.Jb
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(Exact solutions)
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04.30.Nk
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(Wave propagation and interactions)
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Fund: Project supported by the Fundamental Research Funds for the Central Universities (Grant Nos. 2021XJLX01 and BLX201927), China Post-doctoral Science Foundation (Grant No. 2019M660491), and the Natural Science Foundation of Hebei Province, China (Grant No. A2021502003). |
Corresponding Authors:
Zhong Du
E-mail: duzhong002@ncepu.edu.cn
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Cite this article:
Yu-Qiang Yuan(袁玉强), Xiao-Yu Wu(武晓昱), and Zhong Du(杜仲) Rogue waves of a (3+1)-dimensional BKP equation 2022 Chin. Phys. B 31 120202
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