{ "id": "1702.00561", "version": "v1", "published": "2017-02-02T07:35:04.000Z", "updated": "2017-02-02T07:35:04.000Z", "title": "Autocommuting probability of a finite group", "authors": [ "Parama Dutta", "Rajat Kanti Nath" ], "comment": "10 pages", "categories": [ "math.GR" ], "abstract": "Let $G$ be a finite group and $\\Aut(G)$ the automorphism group of $G$. The autocommuting probability of $G$, denoted by $\\Pr(G, \\Aut(G))$, is the probability that a randomly chosen automorphism of $G$ fixes a randomly chosen element of $G$. In this paper, we study $\\Pr(G, \\Aut(G))$ through a generalization. We obtain a computing formula, several bounds and characterizations of $G$ through $\\Pr(G, \\Aut(G))$. We conclude the paper by showing that the generalized autocommuting probability of $G$ remains unchanged under autoisoclinism.", "revisions": [ { "version": "v1", "updated": "2017-02-02T07:35:04.000Z" } ], "analyses": { "subjects": [ "20D60", "20P05", "20F28" ], "keywords": [ "finite group", "automorphism group", "randomly chosen element", "randomly chosen automorphism", "generalization" ], "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable" } } }