{ "id": "2304.03939", "version": "v1", "published": "2023-04-08T06:54:57.000Z", "updated": "2023-04-08T06:54:57.000Z", "title": "Compact contact sets of sub-quadratic solutions to the thin obstacle problem", "authors": [ "Simon Eberle", "Hui Yu" ], "categories": [ "math.AP" ], "abstract": "We study global solutions to the thin obstacle problem with at most quadratic growth at infinity. We show that every ellipsoid can be realized as the contact set of such a solution. On the other hand, if such a solution has a compact contact set, we show that it must be an ellipsoid.", "revisions": [ { "version": "v1", "updated": "2023-04-08T06:54:57.000Z" } ], "analyses": { "subjects": [ "35R35", "35B65" ], "keywords": [ "compact contact set", "thin obstacle problem", "sub-quadratic solutions", "study global solutions", "quadratic growth" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }