{"title":"将列类型的有限简单群写成子集共轭的乘积","authors":"Daniele Dona","doi":"arxiv-2409.11246","DOIUrl":null,"url":null,"abstract":"The Liebeck-Nikolov-Shalev conjecture [LNS12] asserts that, for any finite\nsimple non-abelian group $G$ and any set $A\\subseteq G$ with $|A|\\geq 2$, $G$\nis the product of at most $N\\frac{\\log|G|}{\\log|A|}$ conjugates of $A$, for\nsome absolute constant $N$. For $G$ of Lie type, we prove that for any $\\varepsilon>0$ there is some\n$N_{\\varepsilon}$ for which $G$ is the product of at most\n$N_{\\varepsilon}\\left(\\frac{\\log|G|}{\\log|A|}\\right)^{1+\\varepsilon}$\nconjugates of either $A$ or $A^{-1}$. For symmetric sets, this improves on\nresults of Liebeck, Nikolov, and Shalev [LNS12] and Gill, Pyber, Short, and\nSzab\\'o [GPSS13]. During the preparation of this paper, the proof of the Liebeck-Nikolov-Shalev\nconjecture was completed by Lifshitz [Lif24]. Both papers use [GLPS24] as a\nstarting point. Lifshitz's argument uses heavy machinery from representation\ntheory to complete the conjecture, whereas this paper achieves a more modest\nresult by rather elementary combinatorial arguments.","PeriodicalId":501037,"journal":{"name":"arXiv - MATH - Group Theory","volume":"207 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Writing finite simple groups of Lie type as products of subset conjugates\",\"authors\":\"Daniele Dona\",\"doi\":\"arxiv-2409.11246\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The Liebeck-Nikolov-Shalev conjecture [LNS12] asserts that, for any finite\\nsimple non-abelian group $G$ and any set $A\\\\subseteq G$ with $|A|\\\\geq 2$, $G$\\nis the product of at most $N\\\\frac{\\\\log|G|}{\\\\log|A|}$ conjugates of $A$, for\\nsome absolute constant $N$. For $G$ of Lie type, we prove that for any $\\\\varepsilon>0$ there is some\\n$N_{\\\\varepsilon}$ for which $G$ is the product of at most\\n$N_{\\\\varepsilon}\\\\left(\\\\frac{\\\\log|G|}{\\\\log|A|}\\\\right)^{1+\\\\varepsilon}$\\nconjugates of either $A$ or $A^{-1}$. For symmetric sets, this improves on\\nresults of Liebeck, Nikolov, and Shalev [LNS12] and Gill, Pyber, Short, and\\nSzab\\\\'o [GPSS13]. During the preparation of this paper, the proof of the Liebeck-Nikolov-Shalev\\nconjecture was completed by Lifshitz [Lif24]. Both papers use [GLPS24] as a\\nstarting point. Lifshitz's argument uses heavy machinery from representation\\ntheory to complete the conjecture, whereas this paper achieves a more modest\\nresult by rather elementary combinatorial arguments.\",\"PeriodicalId\":501037,\"journal\":{\"name\":\"arXiv - MATH - Group Theory\",\"volume\":\"207 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Group Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.11246\",\"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 - MATH - Group Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.11246","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Writing finite simple groups of Lie type as products of subset conjugates
The Liebeck-Nikolov-Shalev conjecture [LNS12] asserts that, for any finite
simple non-abelian group $G$ and any set $A\subseteq G$ with $|A|\geq 2$, $G$
is the product of at most $N\frac{\log|G|}{\log|A|}$ conjugates of $A$, for
some absolute constant $N$. For $G$ of Lie type, we prove that for any $\varepsilon>0$ there is some
$N_{\varepsilon}$ for which $G$ is the product of at most
$N_{\varepsilon}\left(\frac{\log|G|}{\log|A|}\right)^{1+\varepsilon}$
conjugates of either $A$ or $A^{-1}$. For symmetric sets, this improves on
results of Liebeck, Nikolov, and Shalev [LNS12] and Gill, Pyber, Short, and
Szab\'o [GPSS13]. During the preparation of this paper, the proof of the Liebeck-Nikolov-Shalev
conjecture was completed by Lifshitz [Lif24]. Both papers use [GLPS24] as a
starting point. Lifshitz's argument uses heavy machinery from representation
theory to complete the conjecture, whereas this paper achieves a more modest
result by rather elementary combinatorial arguments.