{ "id": "1606.09511", "version": "v1", "published": "2016-06-30T14:38:56.000Z", "updated": "2016-06-30T14:38:56.000Z", "title": "Corrigendum to \"On injective modules and support varieties for the small quantum group\"", "authors": [ "Christopher M. Drupieski" ], "comment": "2 pages; Corrigendum to [C.M. Drupieski, On injective modules and support varieties for the small quantum group, Int. Math. Res. Not. 2011 (2011), 2263-2294]", "categories": [ "math.RT", "math.QA" ], "abstract": "The proof of Theorem 5.12 in [C.M. Drupieski, On injective modules and support varieties for the small quantum group, Int. Math. Res. Not. 2011 (2011), 2263-2294] does not make sense as written because the algebra $u_\\zeta(\\mathfrak{b}_\\alpha^+)$ need not be a Hopf subalgebra of $u_\\zeta(\\mathfrak{b}^+)$ unless $\\alpha$ is a simple root. This note describes how the proof should be modified to work around this fact.", "revisions": [ { "version": "v1", "updated": "2016-06-30T14:38:56.000Z" } ], "analyses": { "subjects": [ "17B37", "20G10" ], "keywords": [ "small quantum group", "support varieties", "injective modules", "corrigendum", "hopf subalgebra" ], "note": { "typesetting": "TeX", "pages": 2, "language": "en", "license": "arXiv", "status": "editable" } } }