{ "id": "1401.0755", "version": "v1", "published": "2014-01-04T00:01:45.000Z", "updated": "2014-01-04T00:01:45.000Z", "title": "Centers associated with the Borel subalgebra of the general linear Lie algebra", "authors": [ "Oz Ben-Shimol" ], "categories": [ "math.RT", "math.RA" ], "abstract": "We consider a Borel subalgebra $\\fg$ of the general linear algebra and its subalgebra $\\BB$ which is a Borel subalgebra of the special linear algebra, over arbitrary field. Let $\\cL\\in\\{\\fg, \\BB\\}$. We establish here explicit realizations of the center $Z(\\cL)$ and semi-center $Sz(\\cL)$ of the enveloping algebra, the Poisson center $S(\\cL)^{\\cL}$ and Poisson semi-center $S(\\cL)^{\\cL}_{\\si}$ of the symmetric algebra. We describe their structure as commutative rings and establish isomorphisms $Z(\\cL)\\cong S(\\cL)^{\\cL}$, $Sz(\\cL)\\cong S(\\cL)^{\\cL}_{\\si}$", "revisions": [ { "version": "v1", "updated": "2014-01-04T00:01:45.000Z" } ], "analyses": { "keywords": [ "general linear lie algebra", "borel subalgebra", "special linear algebra", "general linear algebra" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1401.0755B" } } }