Characterization of the group $G_2(5)$ by the prime graph

• Дата: 2016
• Автори: Darafsheh, M. R., Nosratpour, P., Дарафшех, М. Р., Носратпур, П.
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Institute of Mathematics, NAS of Ukraine 2016
• Онлайн доступ: https://umj.imath.kiev.ua/index.php/umj/article/view/1909
• Назва журналу: Ukrains’kyi Matematychnyi Zhurnal

Let $G$ be a finite group. The prime graph of $G$ is a graph $\Gamma (G)$ with vertex set $\pi (G)$ and the set of all prime divisors of $|G|$, where two distinct vertices $p$ and $q$ are adjacent by an edge if $G$ has an element of order $pq$. We prove that if $G\Gamma (G) = \Gamma (G_2(5))$, then...