{ "id": "2404.12364", "version": "v1", "published": "2024-04-18T17:47:33.000Z", "updated": "2024-04-18T17:47:33.000Z", "title": "On the well-posedness of the KP-I equation", "authors": [ "Zihua Guo", "Luc Molinet" ], "categories": [ "math.AP" ], "abstract": "We revisit the local well-posedness for the KP-I equation. We obtain unconditional local well-posedness in $H^{s,0}({\\mathbb R}^2)$ for $s>3/4$ and unconditional global well-posedness in the energy space. We also prove the global existence of perturbations with finite energy of non decaying smooth global solutions.", "revisions": [ { "version": "v1", "updated": "2024-04-18T17:47:33.000Z" } ], "analyses": { "subjects": [ "35A02", "35E15", "35Q53", "35B45", "35D30" ], "keywords": [ "kp-i equation", "non decaying smooth global solutions", "unconditional global well-posedness", "unconditional local well-posedness", "finite energy" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }