{ "id": "1307.0638", "version": "v1", "published": "2013-07-02T09:19:40.000Z", "updated": "2013-07-02T09:19:40.000Z", "title": "Hyers--Ulam stability of derivations and linear functions", "authors": [ "Zoltán Boros", "Eszter Gselmann" ], "comment": "9 pages; published in Aequationes Mathematicae in 2010", "doi": "10.1007/s00010-010-0026-1", "categories": [ "math.CA" ], "abstract": "In this paper the following implication is verified for certain basic algebraic curves: if the additive real function $f$ approximately (i.e., with a bounded error) satisfies the derivation rule along the graph of the algebraic curve in consideration, then $f$ can be represented as the sum of a derivation and a linear function. When, instead of the additivity of $f$, it is assumed that, in addition, the Cauchy difference of $f$ is bounded, a stability theorem is obtained for such characterizations of derivations.", "revisions": [ { "version": "v1", "updated": "2013-07-02T09:19:40.000Z" } ], "analyses": { "subjects": [ "39B82", "39B72" ], "keywords": [ "linear function", "hyers-ulam stability", "basic algebraic curves", "additive real function", "derivation rule" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 9, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.0638B" } } }