{ "id": "math/0611287", "version": "v2", "published": "2006-11-09T18:16:09.000Z", "updated": "2007-04-15T15:07:27.000Z", "title": "On Automatic Continuity of 3-Homomorphisms on Banach Algebras", "authors": [ "Janko Bracic", "Mohammad Sal Moslehian" ], "comment": "7 Pages (Minor revision), to appear in Bull. Malays. Math. Sci. Soc", "journal": "Bull. Malays. Math. Sci. Soc. (2) 30(2) (2007), 101--106.", "categories": [ "math.FA", "math.OA" ], "abstract": "A linear map $\\phi:{\\mathcal A}\\to {\\mathcal B} $ between (Banach) algebras is called 3-homomorphism if $\\phi(abc)=\\phi(a)\\phi(b)\\phi(c)$ for each $a, b, c \\in {\\mathcal A}$. We investigate 3-homomorphisms on Banach algebras with bounded approximate identities and establish in two ways that every involution preserving homomorphism between $C^*$-algebras is norm decreasing.", "revisions": [ { "version": "v2", "updated": "2007-04-15T15:07:27.000Z" } ], "analyses": { "subjects": [ "47B48", "46L05", "16Wxx" ], "keywords": [ "banach algebras", "automatic continuity", "linear map", "bounded approximate identities" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math.....11287B" } } }