{ "id": "1507.04058", "version": "v1", "published": "2015-07-15T00:35:26.000Z", "updated": "2015-07-15T00:35:26.000Z", "title": "Computation of Integral Bases", "authors": [ "Jens-Dietrich Bauch" ], "comment": "22 pages, 4 figures", "categories": [ "math.NT" ], "abstract": "Let $A$ be a Dedekind domain, $K$ the fraction field of $A$, and $f\\in A[x]$ a monic irreducible separable polynomial. For a given non-zero prime ideal $\\mathfrak{p}$ of $A$ we present in this paper a new method to compute a $\\mathfrak{p}$-integral basis of the extension of $K$ determined by $f$. Our method is based on the use of simple multipliers that can be constructed with the data that occurs along the flow of the Montes Algorithm. Our construction of a $\\mathfrak{p}$-integral basis is significantly faster than the similar approach from $[7]$ and provides in many cases a priori a triangular basis.", "revisions": [ { "version": "v1", "updated": "2015-07-15T00:35:26.000Z" } ], "analyses": { "subjects": [ "11R04", "11Y40", "14G15", "14H05" ], "keywords": [ "integral basis", "computation", "non-zero prime ideal", "monic irreducible separable polynomial", "triangular basis" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150704058B" } } }