{ "id": "1904.03886", "version": "v1", "published": "2019-04-08T08:34:22.000Z", "updated": "2019-04-08T08:34:22.000Z", "title": "A monodromy criterion for existence of Neron models of abelian schemes in characteristic zero", "authors": [ "Giulio Orecchia" ], "comment": "54 pages. Comments are welcome", "categories": [ "math.AG" ], "abstract": "We consider the problem of existence of Neron models for a family of abelian varieties over a base of dimension greater than 1. We show that when S is of equicharacteristic zero, the condition of toric additivity introduced in [Ore18] is sufficient for the existence of a Neron model, and also necessary under some extra assumptions. Furthermore, we give an equivalent formulation of toric additivity in terms of monodromy action on the l-adic Tate module.", "revisions": [ { "version": "v1", "updated": "2019-04-08T08:34:22.000Z" } ], "analyses": { "subjects": [ "14D05", "14D06", "14K05" ], "keywords": [ "neron model", "abelian schemes", "monodromy criterion", "toric additivity", "l-adic tate module" ], "note": { "typesetting": "TeX", "pages": 54, "language": "en", "license": "arXiv", "status": "editable" } } }