{"title":"Weight $$\\mathbf {1/2}$$ multiplier systems for the group $$\\mathbf {\\Gamma _0^+({\\varvec{p}})}$$ and a geometric formulation","authors":"","doi":"10.1007/s00013-023-01948-w","DOIUrl":null,"url":null,"abstract":"<h3>Abstract</h3> <p>We construct a weight 1/2 multiplier system for the group <span> <span>\\(\\Gamma _0^+(p)\\)</span> </span>, the normalizer of the congruence subgroup <span> <span>\\(\\Gamma _0(p)\\)</span> </span> where <em>p</em> is an odd prime, and we define an analogue of the eta function and Rademacher symbol and relate it to the geometry of edge paths in a triangulation of the upper half-plane.</p>","PeriodicalId":8346,"journal":{"name":"Archiv der Mathematik","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Archiv der Mathematik","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s00013-023-01948-w","RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
We construct a weight 1/2 multiplier system for the group \(\Gamma _0^+(p)\), the normalizer of the congruence subgroup \(\Gamma _0(p)\) where p is an odd prime, and we define an analogue of the eta function and Rademacher symbol and relate it to the geometry of edge paths in a triangulation of the upper half-plane.
期刊介绍:
Archiv der Mathematik (AdM) publishes short high quality research papers in every area of mathematics which are not overly technical in nature and addressed to a broad readership.