{ "id": "2203.16658", "version": "v1", "published": "2022-03-30T20:23:31.000Z", "updated": "2022-03-30T20:23:31.000Z", "title": "On Sequences in Cyclic Groups with Distinct Partial Sums", "authors": [ "Simone Costa", "Stefano Della Fiore", "M. A. Ollis", "Sarah Z. Rovner-Frydman" ], "comment": "19 pages, plus supporting tables and code", "categories": [ "math.CO" ], "abstract": "A subset of an abelian group is {\\em sequenceable} if there is an ordering $(x_1, \\ldots, x_k)$ of its elements such that the partial sums $(y_0, y_1, \\ldots, y_k)$, given by $y_0 = 0$ and $y_i = \\sum_{j=1}^i x_i$ for $1 \\leq i \\leq k$, are distinct, with the possible exception that we may have $y_k = y_0 = 0$. We demonstrate the sequenceability of subsets of size $k$ of $\\mathbb{Z}_n \\setminus \\{ 0 \\}$ when $n = mt$ in many cases, including when $m$ is either prime or has all prime factors larger than $k! /2$ for $k \\leq 11$ and $t \\leq 5$ and for $k=12$ and $t \\leq 4$. We obtain similar, but partial, results for $13 \\leq k \\leq 15$. This represents progress on a variety of questions and conjectures in the literature concerning the sequenceability of subsets of abelian groups, which we combine and summarize into the conjecture that if a subset of an abelian group does not contain 0 then it is sequenceable.", "revisions": [ { "version": "v1", "updated": "2022-03-30T20:23:31.000Z" } ], "analyses": { "subjects": [ "05C25" ], "keywords": [ "distinct partial sums", "cyclic groups", "abelian group", "prime factors larger", "sequenceability" ], "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable" } } }