Rezaeezadeh G R, Darafsheh M R, Bibak M, Sajadi M. OD-characterization of Almost Simple Groups Related to displaystyle D4(4). IJMSI 2015; 10 (1) :23-43
URL:
http://ijmsi.ir/article-1-382-fa.html
چکیده:
Let $G$ be a finite group and $pi_{e}(G)$ be the set of orders of all elements in $G$. The set $pi_{e}(G)$ determines the prime graph (or Grunberg-Kegel graph) $Gamma(G)$ whose vertex set is $pi(G)$, the set of primes dividing the order of $G$, and two vertices $p$ and $q$ are adjacent if and only if $pqinpi_{e}(G)$. The degree $deg(p)$ of a vertex $pin pi(G)$, is the number of edges incident on $p$. Let $pi(G)={p_{1},p_{2},...,p_{k}}$ with $p_{1}
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