{ "id": "1901.07048", "version": "v1", "published": "2019-01-21T19:25:27.000Z", "updated": "2019-01-21T19:25:27.000Z", "title": "Centers of Sylow Subgroups and Automorphisms", "authors": [ "Robert Guralnick", "Gabriel Navarro" ], "categories": [ "math.GR" ], "abstract": "Suppose that p is an odd prime and G is a finite group having no normal non-trivial p'-subgroup. We show that if a is an automorphism of G of p-power order centralizing a Sylow p-group of G, then a is inner. This answers a conjecture of Gross.", "revisions": [ { "version": "v1", "updated": "2019-01-21T19:25:27.000Z" } ], "analyses": { "subjects": [ "20D20", "20E32" ], "keywords": [ "sylow subgroups", "automorphism", "odd prime", "normal non-trivial", "sylow p-group" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }