{ "id": "1101.2601", "version": "v2", "published": "2011-01-13T16:06:50.000Z", "updated": "2013-02-07T15:06:02.000Z", "title": "Optimal regularity and nondegeneracy of a free boundary problem related to the fractional Laplacian", "authors": [ "Ray Yang" ], "comment": "Updated draft - certain changes suggested by referee in presentation, typos and some errors corrected, main results unchanged", "categories": [ "math.AP" ], "abstract": "We discuss the optimal regularity and nondegeneracy of a free boundary problem related to the fractional Laplacian. This work is related to, but addresses a different problem from, recent work of Caffarelli, Roquejoffre, and Sire. A variant of the boundary Harnack inequality is also proved, where it is no longer required that the function be 0 along the boundary.", "revisions": [ { "version": "v2", "updated": "2013-02-07T15:06:02.000Z" } ], "analyses": { "subjects": [ "35R35" ], "keywords": [ "free boundary problem", "fractional laplacian", "optimal regularity", "nondegeneracy", "boundary harnack inequality" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1101.2601Y" } } }