{ "id": "1305.5502", "version": "v1", "published": "2013-05-23T17:58:33.000Z", "updated": "2013-05-23T17:58:33.000Z", "title": "On the Probability of Relative Primality in the Gaussian Integers", "authors": [ "Bianca De Sanctis", "Samuel Reid" ], "comment": "6 pages, 1 figure", "categories": [ "math.NT" ], "abstract": "This paper studies the interplay between probability, number theory, and geometry in the context of relatively prime integers in the ring of integers of a number field. In particular, probabilistic ideas are coupled together with integer lattices and the theory of zeta functions over number fields in order to show that $$P(\\gcd(z_{1},z_{2})=1) = \\frac{1}{\\zeta_{\\Q(i)}(2)}$$ where $z_{1},z_{2} \\in \\mathbb{Z}[i]$ are randomly chosen and $\\zeta_{\\Q(i)}(s)$ is the Dedekind zeta function over the Gaussian integers. Our proof outlines a lattice-theoretic approach to proving the generalization of this theorem to arbitrary number fields that are principal ideal domains.", "revisions": [ { "version": "v1", "updated": "2013-05-23T17:58:33.000Z" } ], "analyses": { "subjects": [ "11M20", "11K99" ], "keywords": [ "gaussian integers", "relative primality", "probability", "dedekind zeta function", "arbitrary number fields" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2013arXiv1305.5502D" } } }