{ "id": "math/0307052", "version": "v1", "published": "2003-07-03T16:02:31.000Z", "updated": "2003-07-03T16:02:31.000Z", "title": "On the Hodge-Newton decomposition for split groups", "authors": [ "Robert E. Kottwitz" ], "journal": "Internat. Math. Res. Notices 26 (2003), 1433-1447", "categories": [ "math.RT" ], "abstract": "The main purpose of this paper is to prove a group-theoretic generalization of a theorem of Katz on isocrystals. Along the way we reprove the group-theoretic generalization of Mazur's inequality for isocrystals due to Rapoport-Richartz, and generalize from split groups to unramified groups a result of Kottwitz-Rapoport which determines when an affine Deligne-Lusztig subset of the affine Grassmannian is non-empty.", "revisions": [ { "version": "v1", "updated": "2003-07-03T16:02:31.000Z" } ], "analyses": { "subjects": [ "11S25", "14L05", "14F30" ], "keywords": [ "split groups", "hodge-newton decomposition", "group-theoretic generalization", "affine deligne-lusztig subset", "main purpose" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2003math......7052K" } } }