{"title":"Realizing regular representations of finite groups","authors":"Pedro J. Chocano","doi":"10.1016/j.jalgebra.2024.09.016","DOIUrl":null,"url":null,"abstract":"<div><div>Given a regular representation of a finite group <em>G</em> and a positive integer number <em>n</em>, we construct a (finite) topological space <em>X</em> such that its group of homotopy classes of self-homotopy equivalences <span><math><mi>E</mi><mo>(</mo><mi>X</mi><mo>)</mo></math></span> and its group of homeomorphisms <span><math><mi>A</mi><mi>u</mi><mi>t</mi><mo>(</mo><mi>X</mi><mo>)</mo></math></span> are isomorphic to <em>G</em>, and the action of <em>G</em> on the <em>n</em>-th homology group <span><math><msub><mrow><mi>H</mi></mrow><mrow><mi>n</mi></mrow></msub><mo>(</mo><mi>X</mi><mo>)</mo></math></span> is the regular representation. We also discuss other representations.</div></div>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0021869324005222","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Given a regular representation of a finite group G and a positive integer number n, we construct a (finite) topological space X such that its group of homotopy classes of self-homotopy equivalences and its group of homeomorphisms are isomorphic to G, and the action of G on the n-th homology group is the regular representation. We also discuss other representations.