{"title":"Branching laws of Klein four-symmetric pairs for $$\\textrm{Sp}(n,\\mathbb {R})$$","authors":"Jiaying Ding, Haian He, Huangyuan Pan, Lifu Wang","doi":"10.1007/s10711-024-00922-2","DOIUrl":null,"url":null,"abstract":"<p>For the real symplectic groups <span>\\(G=\\textrm{Sp}(n,\\mathbb {R})\\)</span>, we classify all the Klein four-symmetric pairs <span>\\((G,G^\\Gamma )\\)</span>, and determine whether there exist infinite-dimensional irreducible <span>\\((\\mathfrak {g},K)\\)</span>-modules discretely decomposable upon restriction to <span>\\(G^\\Gamma \\)</span>. As a consequence, we obtain a similar result to Chen and He (Int J Math 34(1):2250094, 2023, Corollary 21).</p>","PeriodicalId":0,"journal":{"name":"","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2024-04-11","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/s10711-024-00922-2","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
For the real symplectic groups \(G=\textrm{Sp}(n,\mathbb {R})\), we classify all the Klein four-symmetric pairs \((G,G^\Gamma )\), and determine whether there exist infinite-dimensional irreducible \((\mathfrak {g},K)\)-modules discretely decomposable upon restriction to \(G^\Gamma \). As a consequence, we obtain a similar result to Chen and He (Int J Math 34(1):2250094, 2023, Corollary 21).