{ "id": "2302.09513", "version": "v1", "published": "2023-02-19T09:13:25.000Z", "updated": "2023-02-19T09:13:25.000Z", "title": "Non-solvable torsion-free virtually solvable groups", "authors": [ "Jonathan A. Hillman" ], "categories": [ "math.GR" ], "abstract": "We show that a non-solvable, torsion-free, virtually solvable group $S$ must have Hirsch length $h(S)\\geq7$ and either be virtually nilpotent and of nilpotency class $\\leq3$ or have $h(S)\\geq8$. If $S$ is virtually polycyclic but not virtually nilpotent then $h(S)\\geq9$. (There are virtually abelian examples with Hirsch length 15, and this is known to be best possible in the virtually abelian case.)", "revisions": [ { "version": "v1", "updated": "2023-02-19T09:13:25.000Z" } ], "analyses": { "subjects": [ "20F19" ], "keywords": [ "non-solvable torsion-free virtually solvable groups", "hirsch length", "virtually nilpotent", "virtually abelian examples", "nilpotency class" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }