{ "id": "1701.04425", "version": "v1", "published": "2017-01-16T19:16:03.000Z", "updated": "2017-01-16T19:16:03.000Z", "title": "A note on truncations in fractional Sobolev spaces", "authors": [ "Roberta Musina", "Alexander I. Nazarov" ], "comment": "9 pages", "categories": [ "math.AP" ], "abstract": "We study the Nemytskii operators $u\\mapsto |u|$ and $u\\mapsto u^{\\pm}$ in fractional Sobolev spaces $H^s(\\mathbb R^n)$, $s>1$.", "revisions": [ { "version": "v1", "updated": "2017-01-16T19:16:03.000Z" } ], "analyses": { "subjects": [ "46E35", "47H30" ], "keywords": [ "fractional sobolev spaces", "truncations", "nemytskii operators" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable" } } }