OD-characterization of some alternating groups

Let $G$ be a finite group. Moghaddamfar et al. defined prime graph $\Gamma(G)$ of group $G$ as follows. The vertices of $\Gamma(G)$ are the primes dividing the order of $G$ and two distinct vertices $p,q$ are joined by an edge, denoted by $p\sim q$, if there is an element in $G$ of order $pq$. Assume $|G|=p_{1}^{\alpha_{1}}\cdots p_{k}^{\alpha_{k}}$ with $P_{1}$

OD-characterization of some alternating groups

Let $G$ be a finite group. Moghaddamfar et al. defined prime graph $\Gamma(G)$ of group $G$ as follows. The vertices of $\Gamma(G)$ are the primes dividing the order of $G$ and two distinct vertices $p,q$ are joined by an edge, denoted by $p\sim q$, if there is an element in $G$ of order $pq$. Assume $|G|=p_{1}^{\alpha_{1}}\cdots p_{k}^{\alpha_{k}}$ with $P_{1}$

___

  • The subgroup structure of the finite classical groups, vol. 129 of London Mathematical Society Lecture Note Series. New York, NY, Cambridge: Cambridge University Press, 1990.
  • Kondratiev AS, Mazurov VD. Recognition of alternating groups of prime degree from the orders of their elements. Siberian Math J 2000; 41: 294–302.
  • Liu S, Yang Y. On Thompson’s conjecture for alternating groups Ap+3. Sci World J 2014; 2014: Article ID 752598, 10 pages.
  • Moghaddamfar AR, Rahbariyan S. More on the OD-characterizability of a finite group. Algebra Colloq 2011; 18: 663–674.
  • Moghaddamfar AR, Zokayi AR. Recognizing finite groups through order and degree pattern. Algebra Colloq 2008; 15: 449–456. [12]Moghaddamfar AR, Zokayi AR, Darafsheh MR. A characterization of finite simple groups by the degrees of vertices of their prime graphs. Algebra Colloq 2005; 12: 431–442.
  • Shi WJ. A new characterization of the sporadic simple groups. In Group theory (Singapore, 1987). Berlin, B, Berlin: de Gruyter, 1989, pp. 531–540.
  • Vasiliev AV. On the recognition of all finite nonabelian simple groups with orders having prime divisors at most 13, Sibirsk Mat Zh 2005; 46: 315–324.
  • Zavarnitsin AV. Recognition of alternating groups of degrees r + 1 and r + 2 for prime r and of a group of degree 16 by the set of their element orders. Algebra Log 2000; 39: 648–661.
  • Zavarnitsin AV, Mazurov VD. Element orders in coverings of symmetric and alternating groups. Algebra Log 1999; 38: 296–315. [17]Zsigmondy K. Zur Theorie der Potenzreste. Monatsh Math Phys 1892; 3: 265–284.