{ "id": "2001.07229", "version": "v1", "published": "2020-01-20T19:37:54.000Z", "updated": "2020-01-20T19:37:54.000Z", "title": "A Bound for the Image Conductor of a Principally Polarized Abelian Variety with Open Galois Image", "authors": [ "Jacob Mayle" ], "categories": [ "math.NT" ], "abstract": "Let $A$ be a principally polarized abelian variety of dimension $g$ over a number field $K$. Assume that the image of the adelic Galois representation of $A$ is open. Then there exists a positive integer $m$ so that the Galois image of $A$ is the full preimage of its reduction modulo $m$. The least $m$ with this property, denoted $m_A$, is called the image conductor of $A$. A recent paper (arXiv:1904.10431) established an upper bound for $m_A$, in terms of standard invariants of $A$, in the case that $A$ is an elliptic curve without complex multiplication. In this note, we generalize the aforementioned result to provide an analogous bound in arbitrary dimension.", "revisions": [ { "version": "v1", "updated": "2020-01-20T19:37:54.000Z" } ], "analyses": { "keywords": [ "principally polarized abelian variety", "open galois image", "image conductor", "adelic galois representation", "complex multiplication" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }