{ "id": "math/0512257", "version": "v4", "published": "2005-12-13T05:09:31.000Z", "updated": "2007-04-10T05:41:27.000Z", "title": "Mixed expansion formula for the rectangular Schur functions and the affine Lie algebra A_1^(1)", "authors": [ "Takeshi Ikeda", "Hiroshi Mizukawa", "Tatsuhiro Nakajima", "Hiro-Fumi Yamada" ], "comment": "21pages", "categories": [ "math.RT", "math.CO" ], "abstract": "Formulas are obtained that express the Schur S-functions indexed by Young diagrams of rectangular shape as linear combinations of \"mixed\" products of Schur's S- and Q-functions. The proof is achieved by using representations of the affine Lie algebra of type A_1^{(1)}. A realization of the basic representation that is of ``D_2^{(2)}''-type plays the central role.", "revisions": [ { "version": "v4", "updated": "2007-04-10T05:41:27.000Z" } ], "analyses": { "subjects": [ "05E05", "17B67" ], "keywords": [ "affine lie algebra", "rectangular schur functions", "mixed expansion formula", "schur s-functions", "young diagrams" ], "note": { "typesetting": "TeX", "pages": 21, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2005math.....12257I" } } }