{"title":"On Greenberg’s conjecture for certain real biquadratic fields","authors":"Abdelakder El Mahi, M’hammed Ziane","doi":"10.1007/s10998-023-00560-3","DOIUrl":null,"url":null,"abstract":"<p>In this paper, we give the structure of the Iwasawa module <span>\\(X=X(k_{\\infty })\\)</span> of the <span>\\(\\mathbb {Z}_{2}\\)</span>-extension of infinitely many real biquadratic fields <i>k</i>. Denote by <span>\\(\\lambda , \\mu \\)</span> and <span>\\(\\nu \\)</span> the Iwasawa invariants of the cyclotomic <span>\\(\\mathbb {Z}_{2}\\)</span>-extension of <i>k</i>. Then <span>\\(\\lambda =\\mu =0 \\)</span> and <span>\\(\\nu =2\\)</span>.</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s10998-023-00560-3","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
In this paper, we give the structure of the Iwasawa module \(X=X(k_{\infty })\) of the \(\mathbb {Z}_{2}\)-extension of infinitely many real biquadratic fields k. Denote by \(\lambda , \mu \) and \(\nu \) the Iwasawa invariants of the cyclotomic \(\mathbb {Z}_{2}\)-extension of k. Then \(\lambda =\mu =0 \) and \(\nu =2\).