{ "id": "1902.03170", "version": "v1", "published": "2019-02-08T16:32:08.000Z", "updated": "2019-02-08T16:32:08.000Z", "title": "Zeros of irreducible characters lying in a normal subgroup", "authors": [ "M. J. Felipe", "N. Grittini", "V. M. Ortiz-Sotomayor" ], "categories": [ "math.GR" ], "abstract": "Let $N$ be a normal subgroup of a finite group $G$. An element $g\\in G$ such that $\\chi(g)=0$ for some irreducible character $\\chi$ of $G$ is called a vanishing element of $G$. The aim of this paper is to analyse the influence of the $\\pi$-elements in $N$ which are (non-)vanishing in $G$ on the $\\pi$-structure of $N$, for a set of primes $\\pi$. In particular, we also study certain arithmetical properties of their $G$-conjugacy class sizes.", "revisions": [ { "version": "v1", "updated": "2019-02-08T16:32:08.000Z" } ], "analyses": { "subjects": [ "20C15", "20E45", "20D20" ], "keywords": [ "normal subgroup", "irreducible characters lying", "conjugacy class sizes", "finite group", "arithmetical properties" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }