{ "id": "2006.03786", "version": "v1", "published": "2020-06-06T05:32:22.000Z", "updated": "2020-06-06T05:32:22.000Z", "title": "Transversals, near transversals, and diagonals in iterated groups and quasigroups", "authors": [ "Anna A. Taranenko" ], "comment": "17 pages", "categories": [ "math.CO" ], "abstract": "Given a binary quasigroup $G$ of order $n$, a $d$-iterated quasigroup $G[d]$ is the $(d+1)$-ary quasigroup equal to the $d$-times composition of $G$ with itself. The Cayley table of every $d$-ary quasigroup is a $d$-dimensional latin hypercube. Transversals and diagonals in multiary quasigroups are defined so that to coincide with those in the corresponding latin hypercube. We prove that if a group $G$ of order $n$ satisfies the Hall--Paige condition, then the number of transversals in $G[d]$ is equal to $ \\frac{n!}{ |G'| n^{n-1}} \\cdot n!^{d} (1 + o(1))$ for large $d$, where $G'$ is the commutator subgroup of $G$. For a general quasigroup $G$, we obtain similar estimations on the numbers of transversals and near transversals in $G[d]$ and develop a method for counting diagonals of other types in iterated quasigroups.", "revisions": [ { "version": "v1", "updated": "2020-06-06T05:32:22.000Z" } ], "analyses": { "keywords": [ "transversals", "iterated groups", "iterated quasigroup", "ary quasigroup equal", "dimensional latin hypercube" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable" } } }