{ "id": "2109.09691", "version": "v1", "published": "2021-09-20T17:01:33.000Z", "updated": "2021-09-20T17:01:33.000Z", "title": "Continuity for the one-dimensional centered Hardy-Littlewood maximal operator at the derivative level", "authors": [ "Cristian González-Riquelme" ], "comment": "10 pages. 2 figures", "categories": [ "math.CA" ], "abstract": "We prove the continuity of the map $f \\mapsto (Mf)'$ from $W^{1,1}(\\mathbb{R})$ to $L^1(\\mathbb{R})$, where $M$ is the centered Hardy-Littlewood maximal operator. This solves a question posed by Carneiro, Madrid and Pierce.", "revisions": [ { "version": "v1", "updated": "2021-09-20T17:01:33.000Z" } ], "analyses": { "subjects": [ "42B25", "46E35" ], "keywords": [ "one-dimensional centered hardy-littlewood maximal operator", "derivative level", "continuity" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }