{ "id": "2006.14534", "version": "v1", "published": "2020-06-25T16:31:09.000Z", "updated": "2020-06-25T16:31:09.000Z", "title": "A new proof of the growth rate of the solvable Baumslag-Solitar groups", "authors": [ "Jennifer Taback", "Alden Walker" ], "comment": "18 pages, 6 figures", "categories": [ "math.GR", "math.CO" ], "abstract": "We exhibit a regular language of geodesics for a large set of elements of $BS(1,n)$ and show that the growth rate of this language is the growth rate of the group. This provides a straightforward calculation of the growth rate of $BS(1,n)$, which was initially computed by Collins, Edjvet and Gill in [5]. Our methods are based on those we develop in [8] to show that $BS(1,n)$ has a positive density of elements of positive, negative and zero conjugation curvature, as introduced by Bar-Natan, Duchin and Kropholler in [1].", "revisions": [ { "version": "v1", "updated": "2020-06-25T16:31:09.000Z" } ], "analyses": { "subjects": [ "20F65", "20F10", "26A12" ], "keywords": [ "growth rate", "solvable baumslag-solitar groups", "zero conjugation curvature", "large set", "regular language" ], "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable" } } }