对称群中n-循环的换位子
群论
2025-10-14 v2
摘要
我们证明,对于 , 个符号上的每个偶置换都是两个 -循环的换位子。更精确地说,令 为对称群, 为交错群。令 表示 -循环的共轭类, 为两个置换的换位子。我们证明:映射 对所有 都是满射。
引用
@article{arxiv.2509.22749,
title = {Commutators of n-cycles in the symmetric group},
author = {Philipp Bader},
journal= {arXiv preprint arXiv:2509.22749},
year = {2025}
}
备注
The result presented in this article can be derived from [Ale\v{s} Vavpeti\v{c}, Commutators of cycles in permutation groups, Ars Math. Contemp. 10 (2016)] and is therefore not intended for publication. We thank Goulnara Arzhantseva and Ale\v{s} Vavpeti\v{c} for pointing out the reference as well as for the subsequent discussion and explanations