Creation of weakly interacting lumps by degeneration of lump chains in the KP1 equation
Article
Article Title | Creation of weakly interacting lumps by degeneration of lump chains in the KP1 equation |
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ERA Journal ID | 88 |
Article Category | Article |
Authors | Zhang, Zhao, Guo, Qi and Stepanyants, Yury |
Journal Title | Chaos, Solitons and Fractals |
Journal Citation | 170, pp. 1-13 |
Article Number | 113398 |
Number of Pages | 13 |
Year | 2023 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0960-0779 |
1873-2887 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.chaos.2023.113398 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S0960077923002990 |
Abstract | We present two different paths to degenerate normally interacting lump chains into anomalously interacting lump patterns within the KadomtsevâPetviashvili (KP1) equation. In the first path, the periods of đ lump chains with close velocities become infinite simultaneously; then, we obtain anomalously interacting đ(đ + 1)â2 lumps directly in one step. The second path consists of two steps: firstly, đ normally interacting lump chains degenerate into đ anomalously interacting lump chains having the same parameters. Then, when the periods of anomalously interacting lump chains tend to infinity, we obtain đ(đ + 1)â2 weakly interacting lumps. In the weakly interacting lump chains, the distance between them varies with time proportional to ln|đĄ|. |
Keywords | KadomtsevâPetviashvili equation; Soliton; Lump; Lump chain; Anomalous scattering |
ANZSRC Field of Research 2020 | 490107. Mathematical methods and special functions |
510301. Acoustics and acoustical devices; waves | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | South China Normal University, China |
School of Mathematics, Physics and Computing | |
Nizhny Novgorod State Technical University, Russia |
https://research.usq.edu.au/item/x8zq9/creation-of-weakly-interacting-lumps-by-degeneration-of-lump-chains-in-the-kp1-equation
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