Degenerate lump interactions within the Kadomtsev-Petviashvili equation
Article
Article Title | Degenerate lump interactions within the Kadomtsev-Petviashvili equation |
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ERA Journal ID | 100 |
Article Category | Article |
Authors | Zhang, Zhao (Author), Li, Biao (Author), Chen, Junchao (Author), Guo, Qi (Author) and Stepanyants, Yury (Author) |
Journal Title | Communications in Nonlinear Science and Numerical Simulation |
Journal Citation | 112, pp. 1-14 |
Article Number | 106555 |
Number of Pages | 14 |
Year | 2022 |
Place of Publication | Netherlands |
ISSN | 1007-5704 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.cnsns.2022.106555 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S1007570422001691 |
Abstract | We consider the anomalous scattering of lumps – fully localised two-dimensional solitary waves – within the framework of the Kadomtsev–Petviashvili equation. Such entities can exist in media with positive dispersion. As has been established, lumps of equal amplitudes can experience anomalously slow interactions. They can also form stationary bound states — multilumps. The features of anomalous interactions of lumps and multilumps have not been studied yet in detail. Therefore, this work aims to find a simple and fast method to derive bound states of lumps and study anomalous interactions of multilumps. The asymptotic behaviour of lumps is analysed analytically and numerically, and the results obtained are illustrated graphically. The approach introduced in this paper can be generalised to other (2+1)-dimensional integrable systems. |
Keywords | Soliton; Lump; Bound state; Kadomtsev–Petviashvili equation; Anomalous scattering |
ANZSRC Field of Research 2020 | 490107. Mathematical methods and special functions |
510399. Classical physics not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | South China Normal University, China |
NingboTech University, China | |
Lishui University, China | |
School of Sciences | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q7569/degenerate-lump-interactions-within-the-kadomtsev-petviashvili-equation
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