{"title":"通过二次正构的最大非结合拟群","authors":"A. Drápal, Ian M. Wanless","doi":"10.5802/alco.165","DOIUrl":null,"url":null,"abstract":"A quasigroup $Q$ is said to be \\emph{maximally nonassociative} if $x\\cdot (y\\cdot z) = (x\\cdot y)\\cdot z$ implies $x=y=z$, for all $x,y,z\\in Q$. We show that, with finitely many exceptions, there exists a maximally nonassociative quasigroup of order $n$ whenever $n$ is not of the form $n=2p_1$ or $n=2p_1p_2$ for primes $p_1,p_2$ with $p_1\\le p_2<2p_1$.","PeriodicalId":8442,"journal":{"name":"arXiv: Combinatorics","volume":"282 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2019-12-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Maximally nonassociative quasigroups via quadratic orthomorphisms\",\"authors\":\"A. Drápal, Ian M. Wanless\",\"doi\":\"10.5802/alco.165\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A quasigroup $Q$ is said to be \\\\emph{maximally nonassociative} if $x\\\\cdot (y\\\\cdot z) = (x\\\\cdot y)\\\\cdot z$ implies $x=y=z$, for all $x,y,z\\\\in Q$. We show that, with finitely many exceptions, there exists a maximally nonassociative quasigroup of order $n$ whenever $n$ is not of the form $n=2p_1$ or $n=2p_1p_2$ for primes $p_1,p_2$ with $p_1\\\\le p_2<2p_1$.\",\"PeriodicalId\":8442,\"journal\":{\"name\":\"arXiv: Combinatorics\",\"volume\":\"282 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-12-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv: Combinatorics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.5802/alco.165\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv: Combinatorics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.5802/alco.165","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Maximally nonassociative quasigroups via quadratic orthomorphisms
A quasigroup $Q$ is said to be \emph{maximally nonassociative} if $x\cdot (y\cdot z) = (x\cdot y)\cdot z$ implies $x=y=z$, for all $x,y,z\in Q$. We show that, with finitely many exceptions, there exists a maximally nonassociative quasigroup of order $n$ whenever $n$ is not of the form $n=2p_1$ or $n=2p_1p_2$ for primes $p_1,p_2$ with $p_1\le p_2<2p_1$.