Hecke 群 H_5 的指数公式
群论
2014-05-27 v3
摘要
本文给出了 Hecke 群 H_5 的主同余子群的指数公式。
引用
@article{arxiv.1401.0775,
title = {The index formula for the Hecke group H_5},
author = {Cheng Lien Lang and Mong Lung Lang},
journal= {arXiv preprint arXiv:1401.0775},
year = {2014}
}
备注
The current version includes a proof of the fact that the commutator subgroup of H_5 is not congruence