>>487
　「y^2 = x^3 - 4 の有理点 と 整点」[2006.07.01]
　"Rational points and integral points on elliptic curve: y^2 = x^3 -4"
　整点:　(2,±2), (5,±11),
　有理点: (106/(3^2), ±1090/(3^3)), (785/(22^2), ±5497/(22^3)), (151322/(61^2), ±58862702/(61^3)), ･･････
　判別式 Δ = -6912 = -2^8･3^3,
　j = 0,
　導手 N = 432,

[参考書]
　Nigel P. Smart, "The algorithmic resolution of Diophantine equations", LMSST 41, Cambridge University Press, (1998),
　243pp
　£16.95
　ISBN 0-521-64633-2.

http://www.kaynet.or.jp/~kay/misc/ix3m4.html