{"title":"Lattices in $$\\mathbb {R}^n\\rtimes \\textrm{SL}_2(\\mathbb {R})$$","authors":"M. M. Radhika, Sandip Singh","doi":"10.1007/s00031-024-09874-z","DOIUrl":null,"url":null,"abstract":"<p>We determine the existence of cocompact lattices in groups of the form <span>\\(\\textrm{V}\\rtimes \\textrm{SL}_2(\\mathbb {R})\\)</span>, where <span>\\(\\textrm{V}\\)</span> is a finite dimensional real representation of <span>\\(\\textrm{SL}_2(\\mathbb {R})\\)</span>. It turns out that the answer depends on the parity of <span>\\(\\dim (\\textrm{V})\\)</span> when the representation is irreducible.</p>","PeriodicalId":49423,"journal":{"name":"Transformation Groups","volume":"45 1","pages":""},"PeriodicalIF":0.4000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transformation Groups","FirstCategoryId":"100","ListUrlMain":"https://doi.org/10.1007/s00031-024-09874-z","RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 0
Abstract
We determine the existence of cocompact lattices in groups of the form \(\textrm{V}\rtimes \textrm{SL}_2(\mathbb {R})\), where \(\textrm{V}\) is a finite dimensional real representation of \(\textrm{SL}_2(\mathbb {R})\). It turns out that the answer depends on the parity of \(\dim (\textrm{V})\) when the representation is irreducible.
期刊介绍:
Transformation Groups will only accept research articles containing new results, complete Proofs, and an abstract. Topics include: Lie groups and Lie algebras; Lie transformation groups and holomorphic transformation groups; Algebraic groups; Invariant theory; Geometry and topology of homogeneous spaces; Discrete subgroups of Lie groups; Quantum groups and enveloping algebras; Group aspects of conformal field theory; Kac-Moody groups and algebras; Lie supergroups and superalgebras.