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椭圆曲线y^2=px(x^2±1)的正整数点
引用本文:乐茂华.椭圆曲线y^2=px(x^2±1)的正整数点[J].湛江师范学院学报,2008,29(3):1-2.
作者姓名:乐茂华
作者单位:湛江师范学院数学与计算科学学院,广东湛江524048
基金项目:国家自然科学基金,广东省自然科学基金
摘    要:设P是素数.该文利用w.Ljunggren关于四次Diophantine方程的结果证明了:(i)椭圆曲线了y^2=px(x^2-1)仅当p=5和p=29时各有一组正整数点(x.y)=(9,60)和(x,y)=(9801,5225220).(ii)当p≠1(mod 8)时.椭圆曲线y^2=px(x^2+1)仅当p=2时有正整数点(x,y)=(1,2);当p≡1(mod 8)时,该曲线至多有一组正整数点(x,y).

关 键 词:椭圆曲线  正整数点  四次Diophantine方程

The Positive Integral Points on the Elliptic Curves y2=px(x2±1)
LE Mao-hua.The Positive Integral Points on the Elliptic Curves y2=px(x2±1)[J].Journal of Zhanjiang Normal College,2008,29(3):1-2.
Authors:LE Mao-hua
Institution:LE Mao-hua (Department of Mathematics, Zhanjiang Normal College,Zhanjiang, Guangdong 524048, China)
Abstract:Let p be a prime. In this paper , using the results on some quartic diophantine equations given by W. Ljunggren, we prove that (i) the elliptic curve y^2 =px(x^2-1) has only positive integral points p =5, (x, y)=(9,60)andp=29, (x, y)=(9801,5225220). (ii) If p≡1(mod 8), then the elliptic curve y^2 =px(x^2+1) has only positive integral point p=2, (x, y)=(2, 1);if p≡1(mod 8),thenit has at most one positive integral point (x, y).
Keywords:elliptic curve  positive integer point  quartic diophantine equation
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