{ "id": "math/0607418", "version": "v2", "published": "2006-07-18T11:15:16.000Z", "updated": "2007-03-20T13:11:42.000Z", "title": "The model completion of the theory of modules over finitely generated commutative algebras", "authors": [ "Moshe Kamensky" ], "comment": "AMSLaTeX, 13 pages, no figures. Part of author's phd thesis", "doi": "10.2178/jsl/1245158083", "categories": [ "math.LO" ], "abstract": "We find the model completion of the theory modules over $A$, where $A$ is a finitely generated commutative algebra over a field $K$. This is done in a context where the field $K$ and the module are represented by sorts in the theory, so that constructible sets associated with a module can be interpreted in this language. The language is expanded by additional sorts for the Grassmanians of all powers of $K^n$, which are necessary to achieve quantifier elimination. The result turns out to be that the model completion is the theory of a certain class of ``big'' injective modules. In particular, it is shown that the class of injective modules is itself elementary. We also obtain an explicit description of the types in this theory.", "revisions": [ { "version": "v2", "updated": "2007-03-20T13:11:42.000Z" } ], "analyses": { "subjects": [ "03C10", "03C60" ], "keywords": [ "finitely generated commutative algebra", "model completion", "achieve quantifier elimination", "injective modules", "additional sorts" ], "tags": [ "dissertation", "journal article" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......7418K" } } }