{ "id": "1208.1570", "version": "v1", "published": "2012-08-08T03:33:22.000Z", "updated": "2012-08-08T03:33:22.000Z", "title": "Multi-component Wronskian solution to the Kadomtsev-Petviashvili equation", "authors": [ "Tao Xu", "Fu-Wei Sun", "Yi Zhang", "Juan Li" ], "comment": "24 pages, 6 figures", "categories": [ "math-ph", "math.MP" ], "abstract": "It is known that the Kadomtsev-Petviashvili (KP) equation can be decomposed into the first two members of the coupled Ablowitz-Kaup-Newell-Segur (AKNS) hierarchy by the binary nonlinearization of Lax pairs. In this paper, we construct the N-th iterated Darboux transformation (DT) for the second- and third-order m-coupled AKNS systems. By using together the N-th iterated DT and Cramer's rule, we find that the KPII equation has the unreduced multi-component Wronskian solution and the KPI equation admits a reduced multi-component Wronskian solution. In particular, based on the unreduced and reduced two-component Wronskians, we obtain two families of fully-resonant line-soliton solutions which contain arbitrary numbers of asymptotic solitons as y->\\mp\\infty to the KPII equation, and the ordinary N-soliton solution to the KPI equation. In addition, we find that the KPI line solitons propagating in parallel can exhibit the bound state at the moment of collision.", "revisions": [ { "version": "v1", "updated": "2012-08-08T03:33:22.000Z" } ], "analyses": { "keywords": [ "kadomtsev-petviashvili equation", "kpii equation", "kpi line solitons", "third-order m-coupled akns systems", "unreduced multi-component wronskian solution" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1208.1570X" } } }