{ "id": "2405.13603", "version": "v1", "published": "2024-05-22T12:55:06.000Z", "updated": "2024-05-22T12:55:06.000Z", "title": "On the number of generators of groups acting arc-transitively on graphs", "authors": [ "Marco Barbieri", "Pablo Spiga" ], "categories": [ "math.GR", "math.CO" ], "abstract": "Given a finite connected graph ${\\Gamma}$ and a group $G$ acting transitively on the vertices of ${\\Gamma}$, we prove that the number of vertices of ${\\Gamma}$ and the cardinality of $G$ are bounded above by a function depending only on the cardinality of ${\\Gamma}$ and on the exponent of $G$. We also prove that the number of generators of a group $G$ acting transitively on the arcs of a finite graph ${\\Gamma}$ cannot be bounded by a function of the valency alone.", "revisions": [ { "version": "v1", "updated": "2024-05-22T12:55:06.000Z" } ], "analyses": { "subjects": [ "20B25", "05C25" ], "keywords": [ "groups acting", "generators", "cardinality", "finite graph" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }