{ "id": "1807.05908", "version": "v1", "published": "2018-07-16T15:03:49.000Z", "updated": "2018-07-16T15:03:49.000Z", "title": "Global existence for semilinear damped wave equations in relation with the Strauss conjecture", "authors": [ "Mengyun Liu", "Chengbo Wang" ], "comment": "12 pages, no figure", "categories": [ "math.AP" ], "abstract": "We study the global existence of solutions to semilinear wave equations with power-type nonlinearity and general lower order terms on $n$ dimensional nontrapping asymptotically Euclidean manifolds, when $n=3, 4$. In addition, we prove almost global existence with sharp lower bound of the lifespan for the four dimensional critical problem.", "revisions": [ { "version": "v1", "updated": "2018-07-16T15:03:49.000Z" } ], "analyses": { "subjects": [ "35L05", "35L15", "35L71", "35B33", "58J45" ], "keywords": [ "semilinear damped wave equations", "global existence", "strauss conjecture", "general lower order terms", "dimensional nontrapping asymptotically euclidean manifolds" ], "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }