{ "id": "math/9803169", "version": "v1", "published": "1998-03-13T00:00:00.000Z", "updated": "1998-03-13T00:00:00.000Z", "title": "Torsion points of abelian varieties in abelian extensions", "authors": [ "Wolfgang M. Ruppert" ], "categories": [ "math.NT" ], "abstract": "Let A be an abelian variety defined over a number field K and let Kab be the maximal abelian extension of K. We show that there only finitely many torsion points of A which are defined over Kab iff A has no abelian subvariety with complex multiplication over K. We use this to give another proof of Ribet's result that A has only finitely many torsion points which are defined over the cyclotomic extension of K.", "revisions": [ { "version": "v1", "updated": "1998-03-13T00:00:00.000Z" } ], "analyses": { "keywords": [ "torsion points", "maximal abelian extension", "number field", "cyclotomic extension", "ribets result" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998math......3169R" } } }