{ "id": "math/0602055", "version": "v2", "published": "2006-02-03T02:18:02.000Z", "updated": "2006-04-03T05:52:42.000Z", "title": "A central element in the universal enveloping algebra of type D_n via minor summation formula of Pfaffians", "authors": [ "Takashi Hashimoto" ], "comment": "version 1.1(corrected typos and added a reference), 17 pages, no figures", "categories": [ "math.RT" ], "abstract": "It is known that the universal enveloping algebra of the orthogonal Lie algebra of size even has a central element expressed in terms of Pfaffian of a certain matrix alternating along the anti-diagonal (which we call anti-alternating for short) whose entries are in the univerasal enveloping algebra. In this paper, we establish minor summation formulae of Pfaffian for the noncommutative anti-alternating matrix, as well as for commutative anti-alternating matrix. As an application, we show that the eigenvalues on the highest weight modules of the central element given by the Pfaffian can be easily computed.", "revisions": [ { "version": "v2", "updated": "2006-04-03T05:52:42.000Z" } ], "analyses": { "subjects": [ "17B35", "15A15" ], "keywords": [ "universal enveloping algebra", "central element", "anti-alternating matrix", "highest weight modules", "orthogonal lie algebra" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......2055H" } } }