{ "id": "math/0608593", "version": "v1", "published": "2006-08-24T00:23:34.000Z", "updated": "2006-08-24T00:23:34.000Z", "title": "Points of Low Height on Elliptic Curves and Surfaces, I: Elliptic surfaces over P^1 with small d", "authors": [ "Noam D. Elkies" ], "comment": "15 pages; some lines in the TeX source are commented out with \"%\" to meet the 15-page limit for ANTS proceedings", "journal": "Lecture Notes in Computer Science 4076 (proceedings of ANTS-7, 2004; F.Hess, S.Pauli, and M.Pohst, ed.), 287--301", "categories": [ "math.AG", "math.NT" ], "abstract": "For each of n=1,2,3 we find the minimal height h^(P) of a nontorsion point P of an elliptic curve E over C(T) of discriminant degree d=12n (equivalently, of arithmetic genus n), and exhibit all (E,P) attaining this minimum. The minimal h^(P) was known to equal 1/30 for n=1 (Oguiso-Shioda) and 11/420 for n=2 (Nishiyama), but the formulas for the general (E,P) were not known, nor was the fact that these are also the minima for an elliptic curve of discriminant degree 12n over a function field of any genus. For n=3 both the minimal height (23/840) and the explicit curves are new. These (E,P) also have the property that that mP is an integral point (a point of naive height zero) for each m=1,2,...,M, where M=6,8,9 for n=1,2,3; this, too, is maximal in each of the three cases.", "revisions": [ { "version": "v1", "updated": "2006-08-24T00:23:34.000Z" } ], "analyses": { "subjects": [ "11G50", "11G05" ], "keywords": [ "elliptic curve", "elliptic surfaces", "low height", "minimal height", "discriminant degree 12n" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2006math......8593E" } } }