{ "id": "1401.6443", "version": "v1", "published": "2014-01-24T20:19:06.000Z", "updated": "2014-01-24T20:19:06.000Z", "title": "A one-phase problem for the fractional Laplacian: regularity of flat free boundaries", "authors": [ "Daniela De Silva", "Ovidiu Savin", "Yannick Sire" ], "comment": "arXiv admin note: substantial text overlap with arXiv:1102.3086", "categories": [ "math.AP" ], "abstract": "We consider a one-phase free boundary problem involving a fractional Laplacian $(-\\Delta)^\\alpha$, $0<\\alpha <1,$ and we prove that ``flat free boundaries\" are $C^{1,\\gamma}$. We thus extend the known result for the case $\\alpha=1/2.$", "revisions": [ { "version": "v1", "updated": "2014-01-24T20:19:06.000Z" } ], "analyses": { "keywords": [ "flat free boundaries", "fractional laplacian", "one-phase problem", "one-phase free boundary problem", "regularity" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.6443D" } } }