{ "id": "2307.06194", "version": "v1", "published": "2023-07-12T14:34:27.000Z", "updated": "2023-07-12T14:34:27.000Z", "title": "On the Lau group scheme", "authors": [ "Vladimir Drinfeld" ], "categories": [ "math.AG" ], "abstract": "In a 2013 article, Eike Lau constructed a canonical morphism from the stack of $n$-truncated Barsotti-Tate groups over $F_p$ to the stack of n-truncated displays. He also proved that this morphism is a gerbe banded by a commutative group scheme. This e-print is a step towards an explicit description of this group scheme.", "revisions": [ { "version": "v1", "updated": "2023-07-12T14:34:27.000Z" } ], "analyses": { "subjects": [ "14L05", "14F30" ], "keywords": [ "lau group scheme", "explicit description", "commutative group scheme", "eike lau", "truncated barsotti-tate groups" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }