{ "id": "1603.09647", "version": "v1", "published": "2016-03-31T15:44:24.000Z", "updated": "2016-03-31T15:44:24.000Z", "title": "Regularity of solutions for a free boundary problem in two dimensions", "authors": [ "Mark Allen" ], "categories": [ "math.AP" ], "abstract": "We study the regularity of minimizers to the functional \\[ J(w)=\\int_{\\Omega} a^{ij}w_iw_j + Q\\chi_{\\{w>0\\}}, \\] over a bounded domain $\\Omega$ and among the class of nonnegative functions in $W^{1,2}(\\Omega)$ with prescribed boundary data. We assume that the coefficients $a^{ij}$ are only bounded and measurable and satisfy an ellipticity in condition. In two dimensions we prove that minimizers are H\\\"older continuous on subdomains. We also prove that in two dimensions a minimizer $u$ satisfies a linear growth condition from above and below near the free boundary $\\partial \\{u>0\\}$.", "revisions": [ { "version": "v1", "updated": "2016-03-31T15:44:24.000Z" } ], "analyses": { "subjects": [ "49N60", "35R35", "35J15" ], "keywords": [ "free boundary problem", "dimensions", "regularity", "linear growth condition", "prescribed boundary data" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }