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一类超椭圆曲线上的有理点
引用本文:杨仕椿,汤建钢.一类超椭圆曲线上的有理点[J].浙江大学学报(理学版),2016,43(6):676-678.
作者姓名:杨仕椿  汤建钢
基金项目:新疆维吾尔自治区普通高等学校重点学科经费资助项目(2012ZDXK21);四川省高等教育人才培养质量教学改革项目(14-156-711);四川省教育厅自然科学研究项目(15ZA0337,15ZB0348,15ZB0350).
摘    要:设p为素数,r≥0是整数.利用广义Fermat方程的深刻结论证明了:若3≤q<100,q≠31,则当p≥5时,超椭圆曲线yp=x(x+qr)上仅有平凡的有理点y=0;当q=5,11,23,29,41,47,59,83时,给出了该超椭圆曲线所有的有理点(x,y).特别地,当q=3且r=1时,证明了超椭圆曲线yp=x(x+3)仅在p=2时有非平凡的有理点(x,y),并给出了此时所有的非平凡有理点.

关 键 词:有理点  超椭圆曲线  广义Fermat方程  
收稿时间:2015-09-03

Rational points on a class of super elliptic curve
YANG Shichun,TANG Jiangang.Rational points on a class of super elliptic curve[J].Journal of Zhejiang University(Sciences Edition),2016,43(6):676-678.
Authors:YANG Shichun  TANG Jiangang
Institution:1. Department of Mathematics and Finance, Aba Teachers University, Wenchuan 623000, Sichuan Province, China;
2. College of Mathematics and Statistics, Yili Normal University, Yinning 835000, the Xinjiang Uygur Autonomous Region, China
Abstract:Let p be a prime, and r≥0 be a integer. Using the deeply result of generalized Fermat equation, we prove that if 3≤q<100 and q≠31, then the superelliptic curve yp=x(x+qr) has only ordinary rational point y=0 when p≥5. If q=5,11,23,29,41,47,59,83, we give all of the rational points(x,y) in the superelliptic curve. Furthermore, if q=3 and r=1, the superelliptic curve yp=x(x+3) has a non-trivial rational point(x,y) only when p=2.
Keywords:rational point  super elliptic curve  generalized Fermat equation  
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