{ "id": "1905.11961", "version": "v1", "published": "2019-05-28T17:32:18.000Z", "updated": "2019-05-28T17:32:18.000Z", "title": "Almost minimizers for certain fractional variational problems", "authors": [ "Seongmin Jeon", "Arshak Petrosyan" ], "categories": [ "math.AP" ], "abstract": "In this paper we introduce a notion of almost minimizers for certain variational problems governed by the fractional Laplacian, with the help of the Caffarelli-Silvestre extension. In particular, we study almost fractional harmonic functions and almost minimizers for the fractional obstacle problem with zero obstacle. We show that for a certain range of parameters, almost minimizers are almost Lipschitz or $C^{1,\\beta}$-regular.", "revisions": [ { "version": "v1", "updated": "2019-05-28T17:32:18.000Z" } ], "analyses": { "subjects": [ "49N60", "35R35" ], "keywords": [ "fractional variational problems", "minimizers", "fractional obstacle problem", "fractional harmonic functions", "zero obstacle" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }