{ "id": "1001.5373", "version": "v1", "published": "2010-01-29T10:22:07.000Z", "updated": "2010-01-29T10:22:07.000Z", "title": "Finite-energy global well-posedness of the Maxwell-Klein-Gordon system in Lorenz gauge", "authors": [ "Sigmund Selberg", "Achenef Tesfahun" ], "comment": "25 pages", "categories": [ "math.AP" ], "abstract": "It is known that the Maxwell-Klein-Gordon system (M-K-G), when written relative to the Coulomb gauge, is globally well-posed for finite-energy initial data. This result, due to Klainerman and Machedon, relies crucially on the null structure of the main bilinear terms of M-K-G in Coulomb gauge. It appears to have been believed that such a structure is not present in Lorenz gauge, but we prove here that it is, and we use this fact to prove finite-energy global well-posedness in Lorenz gauge. The latter has the advantage, compared to Coulomb gauge, of being Lorentz invariant, hence M-K-G in Lorenz gauge is a system of nonlinear wave equations, whereas in Coulomb gauge the system has a less symmetric form, as it contains also a nonlinear elliptic equation.", "revisions": [ { "version": "v1", "updated": "2010-01-29T10:22:07.000Z" } ], "analyses": { "subjects": [ "35Q40", "35L70" ], "keywords": [ "finite-energy global well-posedness", "lorenz gauge", "maxwell-klein-gordon system", "coulomb gauge", "finite-energy initial data" ], "note": { "typesetting": "TeX", "pages": 25, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1001.5373S" } } }