首页 | 本学科首页   官方微博 | 高级检索  
     

广义Lebesgue—Nagell方程x^2-4p^2r=y3
引用本文:刘妙华.广义Lebesgue—Nagell方程x^2-4p^2r=y3[J].西北纺织工学院学报,2013(6):821-823.
作者姓名:刘妙华
作者单位:空军工程大学理学院,陕西西安710051
基金项目:国家科学自然基金资助项目(11071194)
摘    要:设P是奇素数,运用广义RamanujanNagell方程的性质证明了方程x^2-4p^2r=y3有适合gcd(x,y)=1的正整数解(x,y,r)的充要条件是p=3s^2+4,其中S是大于1的奇数.当此条件成立时,该方程仅有正整数解(x,y,r)=(s^3+12s,x^2-4,1)适合gcd(x,y)=1.

关 键 词:广义Lebesgue—Nagell方程  正整数解  广义Ramanujan—Nagell方程

The generalized Lebesque-Nagell equation x^2-4p^2r=y3
LIU Miao-hua.The generalized Lebesque-Nagell equation x^2-4p^2r=y3[J].Journal of Northwest Institute of Textile Science and Technology,2013(6):821-823.
Authors:LIU Miao-hua
Affiliation:LIU Miao-hua (School of Science,Air Force Engineering University, Xi'an 710051.China)
Abstract:Let p be an odd prime,using certain properties of the generalized Ramanujan-Nagell equations, the conclusion can be proved that the equation x^2-4p^2r=y3 have positive integer solutions (x,y, r) with gcd(x,y) =1 if and only if p=3s2+4, where s is an odd integer with s)l. Moreover, if the above condition holds, then the equation has only the positive integer solution (x,y,r)= (sa +12s,s^2 -4,1) with gcd(x,y)= 1.
Keywords:generalized Lebesque-Nagell equation  generalized Ramanujan-Nagell equation  positive inte-ger solution
本文献已被 维普 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号