{ "id": "2002.09531", "version": "v1", "published": "2020-02-21T19:47:35.000Z", "updated": "2020-02-21T19:47:35.000Z", "title": "Solitary wave solutions and global well-posedness for a coupled system of gKdV equations", "authors": [ "Andressa Gomes", "Ademir Pastor" ], "categories": [ "math.AP" ], "abstract": "In this work we consider the initial-value problem associated with a coupled system of generalized Korteweg-de Vries equations. We present a relationship between the best constant for a Gagliardo-Nirenberg type inequality and a criterion for the existence of global solutions in the energy space. We prove that such a constant is directly related to the existence problem of solitary-wave solutions with minimal mass, the so called ground state solutions. To guarantee the existence of ground states we use a variational method.", "revisions": [ { "version": "v1", "updated": "2020-02-21T19:47:35.000Z" } ], "analyses": { "keywords": [ "solitary wave solutions", "coupled system", "gkdv equations", "global well-posedness", "ground state solutions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }