{ "id": "1302.2455", "version": "v1", "published": "2013-02-11T11:33:10.000Z", "updated": "2013-02-11T11:33:10.000Z", "title": "Rational Subsets and Submonoids of Wreath Products", "authors": [ "Markus Lohrey", "Benjamin Steinberg", "Georg Zetzsche" ], "categories": [ "math.GR", "cs.FL" ], "abstract": "It is shown that membership in rational subsets of wreath products H \\wr V with H a finite group and V a virtually free group is decidable. On the other hand, it is shown that there exists a fixed finitely generated submonoid in the wreath product Z \\wr Z with an undecidable membership problem.", "revisions": [ { "version": "v1", "updated": "2013-02-11T11:33:10.000Z" } ], "analyses": { "subjects": [ "20F10", "20E22", "68Q45" ], "keywords": [ "wreath product", "rational subsets", "undecidable membership problem", "virtually free group", "finite group" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1302.2455L" } } }