{ "id": "1612.06456", "version": "v1", "published": "2016-12-19T23:35:33.000Z", "updated": "2016-12-19T23:35:33.000Z", "title": "Serre-Tate theory for Shimura varieties of Hodge type", "authors": [ "Ananth N. Shankar", "Rong Zhou" ], "comment": "20 pages", "categories": [ "math.NT", "math.AG" ], "abstract": "We study the formal neighbourhood of a point in $\\mu$-ordinary locus of an integral model of a Hodge type Shimura variety. We show that this formal neighbourhood has a structure of a shifted cascade. Moreover we show that the CM points on the formal neighbourhood are dense and that the identity section of the shifted cascade corresponds to a lift of the abelian variety which has a characterization in terms of its endomorphisms in analogy with the Serre-Tate canonical lift of an ordinary abelian variety.", "revisions": [ { "version": "v1", "updated": "2016-12-19T23:35:33.000Z" } ], "analyses": { "keywords": [ "serre-tate theory", "formal neighbourhood", "hodge type shimura variety", "ordinary abelian variety", "shifted cascade corresponds" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable" } } }