{"title":"On the Lagrangian Embedding of \\({\\rm U}(n)\\) in the Grassmannian \\({\\rm Gr} (n -1, 2 n -1)\\)","authors":"N. Tyurin","doi":"10.1134/S1061920824601770","DOIUrl":null,"url":null,"abstract":"<p> In the present paper we combine our previous results in the studies of Lagrangian geometry of the Grassmannian <span>\\({\\rm Gr} (k, n)\\)</span> with the example of Lagrangian embedding of the full flag variety in the direct product of projective spaces, found by D. Bykov. As the result, we construct a Langrangian immersion of the group <span>\\({\\rm U}(n)\\)</span>, as a submanifold, into the complex Grassmanian <span>\\({\\rm Gr} (n-1, 2 n-1)\\)</span> equipped with the symplectic form, by the Plücker embedding. </p><p> <b> DOI</b> 10.1134/S1061920824601770 </p>","PeriodicalId":763,"journal":{"name":"Russian Journal of Mathematical Physics","volume":"32 1","pages":"210 - 218"},"PeriodicalIF":1.7000,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Mathematical Physics","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.1134/S1061920824601770","RegionNum":3,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MATHEMATICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In the present paper we combine our previous results in the studies of Lagrangian geometry of the Grassmannian \({\rm Gr} (k, n)\) with the example of Lagrangian embedding of the full flag variety in the direct product of projective spaces, found by D. Bykov. As the result, we construct a Langrangian immersion of the group \({\rm U}(n)\), as a submanifold, into the complex Grassmanian \({\rm Gr} (n-1, 2 n-1)\) equipped with the symplectic form, by the Plücker embedding.
期刊介绍:
Russian Journal of Mathematical Physics is a peer-reviewed periodical that deals with the full range of topics subsumed by that discipline, which lies at the foundation of much of contemporary science. Thus, in addition to mathematical physics per se, the journal coverage includes, but is not limited to, functional analysis, linear and nonlinear partial differential equations, algebras, quantization, quantum field theory, modern differential and algebraic geometry and topology, representations of Lie groups, calculus of variations, asymptotic methods, random process theory, dynamical systems, and control theory.