{ "id": "1111.3718", "version": "v1", "published": "2011-11-16T06:59:23.000Z", "updated": "2011-11-16T06:59:23.000Z", "title": "Tensor functor from Smooth Motives to motives over a base", "authors": [ "Anandam Banerjee" ], "categories": [ "math.AG", "math.KT" ], "abstract": "Recently, Levine constructed a DG category whose homotopy category is equivalent to the full subcategory of motives over a base-scheme $S$ generated by the motives of smooth projective $S$-schemes, assuming that $S$ is itself smooth over a perfect field. In his construction, the tensor structure required $\\mathbb{Q}$-coefficients. The author has previously shown how to provide a tensor structure on the homotopy category mentioned above, when $S$ is semi-local and essentially smooth over a field of characteristic zero, extending Levine's tensor structure with $\\mathbb{Q}$-coefficients. In this article, it is shown that, under these conditions, the fully faithful functor $\\rho_S$ that Levine constructed from his category of smooth motives to the category $DM_S$ of motives over a base (defined by Cisinski-D\\'{e}glise) is a tensor functor.", "revisions": [ { "version": "v1", "updated": "2011-11-16T06:59:23.000Z" } ], "analyses": { "subjects": [ "19E15", "18E30" ], "keywords": [ "smooth motives", "tensor functor", "homotopy category", "extending levines tensor structure", "dg category" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1111.3718B" } } }