{ "id": "2103.13731", "version": "v1", "published": "2021-03-25T10:20:19.000Z", "updated": "2021-03-25T10:20:19.000Z", "title": "Gradings allowing wild automorphisms", "authors": [ "Anton Trushin" ], "categories": [ "math.AG", "math.RA" ], "abstract": "In 2004 Shestakov and Umirbaev proved that the Nagata automorphism of the polynomial algebra in three variables is wild. We fix a Z-grading on this algebra and consider graded-wild automorphisms, i.e. such automorphisms that can not be decomposed onto elementary automorphisms respecting the grading. We describe all gradings allowing graded-wild automorphisms.", "revisions": [ { "version": "v1", "updated": "2021-03-25T10:20:19.000Z" } ], "analyses": { "subjects": [ "14R10", "13A02", "13N15", "13A50" ], "keywords": [ "graded-wild automorphisms", "nagata automorphism", "polynomial algebra", "elementary automorphisms respecting" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }