{ "id": "0910.2682", "version": "v1", "published": "2009-10-14T18:08:01.000Z", "updated": "2009-10-14T18:08:01.000Z", "title": "Relative decidability and definability in henselian valued fields", "authors": [ "Joseph Flenner" ], "comment": "20 pages", "journal": "J. Symbolic Logic 76 (2011), no. 4, 1240--1260", "categories": [ "math.LO" ], "abstract": "Let K be a henselian valued field of characteristic 0. Then K admits a definable partition on each piece of which the leading term of a polynomial in one variable can be computed as a definable function of the leading term of a linear map. Two applications are given: first, a constructive quantifier elimination relative to the leading terms, suggesting a relative decision procedure; second, a presentation of every definable subset of K as the pullback of a definable set in the leading terms subjected to a linear translation.", "revisions": [ { "version": "v1", "updated": "2009-10-14T18:08:01.000Z" } ], "analyses": { "subjects": [ "03C60", "12J10", "12L05" ], "keywords": [ "henselian valued field", "leading term", "relative decidability", "definability", "linear translation" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 20, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2009arXiv0910.2682F" } } }