arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1209.0573math.NT
收藏

二次曲线上的广义Rédei有理函数与有理逼近

Generalized Rédei rational functions and rational approximations over conics

Stefano Barbero, Umberto Cerruti, Nadir Murru

摘要:

本文从商域出发,研究了一类一般的二次曲线。我们给出了这些二次曲线的群结构,推广了Pell双曲线群的构造。此外,我们推广了Rédei有理函数的定义,以便使用它们来计算这些二次曲线上的点的幂。最后,我们研究了二次曲线上无理数的有理逼近,得到了二次无理数逼近的一个新结果。

英文摘要:

In this paper we study a general class of conics starting from a quotient field. We give a group structure over these conics generalizing the construction of a group over the Pell hyperbola. Furthermore, we generalize the definition of Rédei rational functions in order to use them for evaluating powers of points over these conics. Finally, we study rational approximations of irrational numbers over conics, obtaining a new result for the approximation of quadratic irrationalities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑