On $\Sigma_t^{σ}$ -closed classes of finite groups

• Date: 2018
• Main Authors: Skiba, A. N., Zhang, Chi, Скиба, А. Н., Чжан, Чи
• Format: Article
• Language: Russian
• Published: Institute of Mathematics, NAS of Ukraine 2018
• Online Access: https://umj.imath.kiev.ua/index.php/umj/article/view/1669
• Journal Title: Ukrains’kyi Matematychnyi Zhurnal

All analyzed groups are finite. Let $\sigma = \{ \sigma_i| i \in I\}$ be a partition of the set of all primes $\mathbb{P}$. If $n$ is an integer, then the symbol $\sigma (n)$ denotes a set $\{\sigma_i| \sigma_i \cap \pi (n) \not = \emptyset\}$. Integers $n$ and $m$ are called $\sigma$ -coprime i...