中文

用Lehmer序列研究虚二次域类数的可除性

数论 2022-10-04 v1

摘要

k3k\geq 3n3n\geq 3为奇整数,m0m\geq 0为任意整数。对素数\ell,我们证明虚二次域Q(2m2kn)\mathbb{Q}(\sqrt{\ell^{2m}-2k^n})的类数要么被nn整除,要么被nn的某个特定因数整除。应用该结果,我们构造了如下形式的某类虚二次域无穷族(Q(d),Q(d+1),Q(4d+1),Q(2d+4),Q(2d+16),,Q(2d+4t))\left(\mathbb{Q}(\sqrt{d}), \mathbb{Q}(\sqrt{d+1}), \mathbb{Q}(\sqrt{4d+1}), \mathbb{Q}(\sqrt{2d+4}), \mathbb{Q}(\sqrt{2d+16}), \cdots, \mathbb{Q}(\sqrt{2d+4^t}) \right)其中dZd\in \mathbb{Z}14t2d1\leq 4^t\leq 2|d|,其类数均被nn整除。我们的证明使用了关于Lehmer序列本原除数的若干深刻结果。

关键词

引用

@article{arxiv.2210.00561,
  title  = {Lehmer sequence approach to the divisibility of class numbers of imaginary quadratic fields},
  author = {Kalyan Chakraborty and Azizul Hoque},
  journal= {arXiv preprint arXiv:2210.00561},
  year   = {2022}
}

备注

12 pages. To appear in 'The Ramanujan Journal'