{ "id": "1212.4249", "version": "v3", "published": "2012-12-18T07:18:49.000Z", "updated": "2014-01-08T19:51:32.000Z", "title": "Ga-actions on affine cones", "authors": [ "Takashi Kishimoto", "Yuri Prokhorov", "Mikhail Zaidenberg" ], "comment": "16p. In a formula in the proof of Lemma 2.3, the direct sum was replaced by the usual sum . The authors are grateful to Kevin Langlois for mentioning this inaccuracy", "journal": "Transformation Groups Volume 18, Issue 4 (2013) pp 1137-1153", "doi": "10.1007/s00031-013-9246-5", "categories": [ "math.AG" ], "abstract": "We give a criterion of existence of a unipotent group action on the affine cone over a projective variety or, more generally, on the affine quasicone over a variety which is projective over another affine variety.", "revisions": [ { "version": "v3", "updated": "2014-01-08T19:51:32.000Z" } ], "analyses": { "keywords": [ "affine cone", "ga-actions", "unipotent group action", "affine variety" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1212.4249K" } } }