{ "id": "math/0303222", "version": "v1", "published": "2003-03-18T17:05:23.000Z", "updated": "2003-03-18T17:05:23.000Z", "title": "Long Abelian ideals", "authors": [ "Dmitri I. Panyushev" ], "comment": "LaTeX2e, 8 pages", "journal": "Adv. in Math. 186 (2004), 307-316", "categories": [ "math.RT", "math.CO" ], "abstract": "We study Abelian ideals of a Borel subalgebra consisting of long roots. It is shown that methods of Cellini and Papi can be extended to this situation. A uniform expression for the number of long Abelian ideals is given. We also show that there is a one-to-one correspondence between the long Abelian ideals and B-stable commutative subalgebras in the little adjoint representation of the Langlands dual Lie algebra.", "revisions": [ { "version": "v1", "updated": "2003-03-18T17:05:23.000Z" } ], "analyses": { "keywords": [ "long abelian ideals", "langlands dual lie algebra", "little adjoint representation", "study abelian ideals", "one-to-one correspondence" ], "tags": [ "journal article" ], "publication": { "publisher": "Elsevier", "journal": "Adv. Math." }, "note": { "typesetting": "LaTeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math......3222P" } } }