{"title":"提升斯科特模块的布劳尔不可分性","authors":"Shigeo Koshitani, İpek Tuvay","doi":"arxiv-2409.00403","DOIUrl":null,"url":null,"abstract":"It is proven that if a finite group $G$ has a normal subgroup $H$ with\n$p'$-index (where $p$ is a prime) and $G/H$ is solvable, then for a\n$p$-subgroup $P$ of $H$, if the Scott $kH$-module with vertex $P$ is Brauer\nindecomposable, then so is the Scott $kG$-module with vertex $P$, where $k$ is\na field of characteristic $p>0$. This has several applications.","PeriodicalId":501038,"journal":{"name":"arXiv - MATH - Representation Theory","volume":"4 1","pages":""},"PeriodicalIF":0.0000,"publicationDate":"2024-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Lifting Brauer indecomposability of a Scott module\",\"authors\":\"Shigeo Koshitani, İpek Tuvay\",\"doi\":\"arxiv-2409.00403\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"It is proven that if a finite group $G$ has a normal subgroup $H$ with\\n$p'$-index (where $p$ is a prime) and $G/H$ is solvable, then for a\\n$p$-subgroup $P$ of $H$, if the Scott $kH$-module with vertex $P$ is Brauer\\nindecomposable, then so is the Scott $kG$-module with vertex $P$, where $k$ is\\na field of characteristic $p>0$. This has several applications.\",\"PeriodicalId\":501038,\"journal\":{\"name\":\"arXiv - MATH - Representation Theory\",\"volume\":\"4 1\",\"pages\":\"\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-08-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - MATH - Representation Theory\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.00403\",\"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 - Representation Theory","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.00403","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Lifting Brauer indecomposability of a Scott module
It is proven that if a finite group $G$ has a normal subgroup $H$ with
$p'$-index (where $p$ is a prime) and $G/H$ is solvable, then for a
$p$-subgroup $P$ of $H$, if the Scott $kH$-module with vertex $P$ is Brauer
indecomposable, then so is the Scott $kG$-module with vertex $P$, where $k$ is
a field of characteristic $p>0$. This has several applications.