中文

坐标平面上的有理角平分线与佩尔方程解

数论 2025-01-03 v9

摘要

在坐标平面上,两条直线斜率aabb及其一条角平分线斜率cc满足方程(ac)2(b2+1)=(bc)2(a2+1)(a-c)^2(b^2+1) = (b-c)^2(a^2+1)。近来,作者利用负佩尔方程的解发现了该方程非平凡整数解的显式公式。本文中,对给定的无平方因子整数d>1d > 1与给定整数z>1z > 1,我们利用Q(d)\mathbb Q(\sqrt d)的基本单位以及Z[d]\mathbb Z[\sqrt d]中范数绝对值为最小素幂的元素,刻画满足xxdydy互素的每一个整数解(x,y)(x,y) of x2dy2=z|x^2-dy^2| = z。并作为应用之一刻画了该方程每一个非平凡有理解。

关键词

引用

@article{arxiv.2305.01091,
  title  = {Rational angle bisectors on the coordinate plane and solutions of Pell's equations},
  author = {Takashi Hirotsu},
  journal= {arXiv preprint arXiv:2305.01091},
  year   = {2025}
}

备注

14 pages, 3 figures; Corrected misprints; Revised Definition 1 (2), Theorem 3, and its proof, and changed the numbering of theorems after the seventeenth version