{ "id": "1604.06586", "version": "v1", "published": "2016-04-22T09:34:27.000Z", "updated": "2016-04-22T09:34:27.000Z", "title": "On the Representation of Primes by Binary Quadratic Forms, and Elliptic Curves", "authors": [ "Michele Elia", "Federico Pintore" ], "categories": [ "math.NT" ], "abstract": "It is shown that, under some mild technical conditions, representations of prime numbers by binary quadratic forms can be computed in polynomial complexity by exploiting Schoof's algorithm, which counts the number of $\\mathbb F_q$-points of an elliptic curve over a finite field $\\mathbb F_q$. Further, a method is described which computes representations of primes from reduced quadratic forms by means of the integral roots of polynomials over $\\mathbb Z$. Lastly, some progress is made on the still-unsettled general problem of deciding which primes are represented by which classes of quadratic forms of given discriminant.", "revisions": [ { "version": "v1", "updated": "2016-04-22T09:34:27.000Z" } ], "analyses": { "subjects": [ "11D09", "11Y40", "11E12" ], "keywords": [ "binary quadratic forms", "elliptic curve", "representation", "mild technical conditions", "exploiting schoofs algorithm" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2016arXiv160406586E" } } }