{ "id": "2404.00004", "version": "v1", "published": "2024-02-18T20:56:43.000Z", "updated": "2024-02-18T20:56:43.000Z", "title": "A contribution to the theory of $σ$-properties of a finite group", "authors": [ "A-Ming Liu", "Wenbin Guo", "Vasily G. Safonov", "Alexander N. Skiba" ], "comment": "19 pages", "categories": [ "math.GR" ], "abstract": "We characterize some classes of finite soluble groups. In particular, we prove that: a finite group $G$ is supersoluble if and only if $G$ has a normal subgroup $D$ such that $G/D$ is supersoluble and $D$ avoids every chief factor of $G$ between $V^{G}$ and $V_{G}$ for every maximal subgroup $V$ of the generalized Fitting subgroup $F^{*}(G)$ of $G$; a finite soluble group $G$ is a $PST$-group (that is, Sylow permutability is a transitive relation on $G$) if and only if $G$ has a normal subgroup $D$ such that $G/D$ is nilpotent and $D$ avoids every chief factor of $G$ between $V^{G}$ and $V_{G}$ for every subnormal subgroup $A$ of $G$.", "revisions": [ { "version": "v1", "updated": "2024-02-18T20:56:43.000Z" } ], "analyses": { "subjects": [ "20D10", "20D15", "20D30" ], "keywords": [ "finite group", "finite soluble group", "properties", "contribution", "chief factor" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }