{ "id": "0801.3707", "version": "v6", "published": "2008-01-24T06:43:48.000Z", "updated": "2010-04-23T00:48:37.000Z", "title": "Deformations of nilpotent cones and Springer correspondences", "authors": [ "Syu Kato" ], "comment": "v6. 30pp, fixed 7.8 2) and 10.3 (v5), corrected typos, changed affiliation, and added thanks to Midori, to appear in Amer. J. Math..", "journal": "Amer. J. Math. 133 no.2 519--553 (2011)", "doi": "10.1353/ajm.2011.0014", "categories": [ "math.RT", "math.AG" ], "abstract": "Let G = Sp (2n) be the symplectic group over Z. We present a certain kind of deformation of the nilpotent cone of G with G-action. This enables us to make direct links between the Springer correspondence of sp_{2n} over C, that over characteristic two, and our exotic Springer correspondence. As a by-product, we obtain a complete description of our exotic Springer correspondence.", "revisions": [ { "version": "v6", "updated": "2010-04-23T00:48:37.000Z" } ], "analyses": { "keywords": [ "nilpotent cone", "exotic springer correspondence", "deformation", "complete description", "symplectic group" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 30, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0801.3707K" } } }