{ "id": "2003.01468", "version": "v1", "published": "2020-03-03T12:06:22.000Z", "updated": "2020-03-03T12:06:22.000Z", "title": "Scattering for the mass-critical nonlinear Klein-Gordon equations in three and higher dimensions", "authors": [ "Xing Cheng", "Zihua Guo", "Satoshi Masaki" ], "comment": "33 pages, no figure", "categories": [ "math.AP" ], "abstract": "In this paper we consider the real-valued mass-critical nonlinear Klein-Gordon equations in three and higher dimensions. We prove the dichotomy between scattering and blow-up below the ground state energy in the focusing case, and the energy scattering in the defocusing case. We use the concentration-compactness/rigidity method as R. Killip, B. Stovall, and M. Visan [Trans. Amer. Math. Soc. 364 (2012)]. The main new novelty is to approximate the large scale (low-frequency) profile by the solution of the mass-critical nonlinear Schr\\\"odinger equation when the nonlinearity is not algebraic.", "revisions": [ { "version": "v1", "updated": "2020-03-03T12:06:22.000Z" } ], "analyses": { "subjects": [ "35L71", "35Q40", "35P25", "35B40" ], "keywords": [ "higher dimensions", "scattering", "real-valued mass-critical nonlinear klein-gordon equations", "ground state energy", "concentration-compactness/rigidity method" ], "note": { "typesetting": "TeX", "pages": 33, "language": "en", "license": "arXiv", "status": "editable" } } }