English

Wang-Sun Formula in $\overrightarrow{GL}(\mathbb{Z}/2k\mathbb{Z})$

Number Theory 2023-10-26 v1

Abstract

Wang and Sun proved a certain summatory formula involving derangements and primitive roots of the unit. We study such a formula but for the particular case of the set of affine derangements in GL(Z/2kZ)\overrightarrow{GL}(\mathbb{Z}/2k\mathbb{Z}) and its subset of involutive affine derangements in particular; in this last case its value is relatively simple and it is related to even unitary divisors of kk.

Cite

@article{arxiv.2207.14495,
  title  = {Wang-Sun Formula in $\overrightarrow{GL}(\mathbb{Z}/2k\mathbb{Z})$},
  author = {Octavio A. Agustín-Aquino},
  journal= {arXiv preprint arXiv:2207.14495},
  year   = {2023}
}
R2 v1 2026-06-25T01:19:28.057Z