{ "id": "2403.14389", "version": "v1", "published": "2024-03-21T13:29:44.000Z", "updated": "2024-03-21T13:29:44.000Z", "title": "On the Weights of Root Subgroups of Affine Toric Varieties", "authors": [ "Immanuel van Santen" ], "comment": "22 pages, comments are welcome! arXiv admin note: substantial text overlap with arXiv:2112.04784", "categories": [ "math.AG", "math.CO" ], "abstract": "Let $X$ be an affine toric variety and let $D(X)$ be the set of weights of all root subgroups. It is known that $D(X)$ together with its embedding into the character group determines $X$ as a toric variety. In this article we prove that $X$ is already determined by the abstract set $D(X)$ together with some additional combinatorial data.", "revisions": [ { "version": "v1", "updated": "2024-03-21T13:29:44.000Z" } ], "analyses": { "subjects": [ "14R20", "14M25" ], "keywords": [ "affine toric variety", "root subgroups", "additional combinatorial data", "character group determines", "abstract set" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable" } } }