{ "id": "math/0607478", "version": "v2", "published": "2006-07-19T21:19:36.000Z", "updated": "2008-01-27T17:37:42.000Z", "title": "An exotic Springer correspondence for symplectic groups", "authors": [ "Syu Kato" ], "comment": "v2; 16pp. title changed, Nov/07 version except for one reference, may be merged into next revision of math.RT/0601155", "categories": [ "math.RT", "math.AG" ], "abstract": "This paper is a sequel to math.RT/0601155. Let G be a complex symplectic group. In math.RT/0601155, we constructed a certain G-variety N = N_1, which we call the (1-) exotic nilpotent cone. In this paper, we study the set of G-orbits of the variety N. It turns out that the variety N gives a variant of the Springer correspondence for the Weyl group of type C, but shares a similar flavor with that of type A case. (I.e. there appears no non-trivial local system and the correspondence is bijective.) As an application, we present one sufficient condition for the bijectivity of our exotic Deligne-Langlands correspondence [K1].", "revisions": [ { "version": "v2", "updated": "2008-01-27T17:37:42.000Z" } ], "analyses": { "keywords": [ "exotic springer correspondence", "complex symplectic group", "exotic deligne-langlands correspondence", "non-trivial local system", "exotic nilpotent cone" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......7478K" } } }