{ "id": "1307.3175", "version": "v6", "published": "2013-07-11T16:36:15.000Z", "updated": "2016-05-29T13:52:33.000Z", "title": "Mixed motives and quotient stacks: Abelian varieties", "authors": [ "Isamu Iwanari" ], "comment": "a new version", "categories": [ "math.AG", "math.AT", "math.NT" ], "abstract": "We prove that the symmetric monoidal category of mixed motives generated by an abelian variety (more generally, an abelian scheme) can be described as a certain module category. More precisely, we describe it as the category of quasi-coherent complexes over a derived quotient stack constructed from a motivic algebra of the abelian variety. We then study the structure of the motivic Galois groups of their mixed motives. We prove that the motivic Galois group is decomposed into a unipotent part constructed from the motivic algebra, and the reductive quotient which is the Tannaka dual of Grothendieck numerical motives.", "revisions": [ { "version": "v5", "updated": "2013-12-20T13:06:52.000Z", "comment": "simplified arguments and fixed errors in section 4", "journal": null, "doi": null }, { "version": "v6", "updated": "2016-05-29T13:52:33.000Z" } ], "analyses": { "keywords": [ "abelian variety", "mixed motives", "motivic galois group", "motivic algebra", "symmetric monoidal category" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1307.3175I" } } }