Recognizing finite groups through order and degree pattern

被引:41
|
作者
Moghaddamfar, A. R. [1 ]
Zokayi, A. R. [1 ]
机构
[1] KN Toosi Univ Technol, Fac Sci, Dept Math, Tehran, Iran
关键词
simple group; degree of a vertex; degree pattern; order component; prime graph;
D O I
10.1142/S1005386708000424
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The degree pattern of a finite group C is introduced in [10] and it is proved that the following simple groups are uniquely determined by their degree patterns and orders: all sporadic simple groups, alternating groups A, (p >= 5 is a twin prime) and some simple groups of Lie type. In this paper, we continue this investigation. In particular, we show that the automorphism groups of sporadic simple groups (except Aut(J(2)) and Aut(M degrees L)), all simple C-22-groups, the alternating groups A(p), A(p+1), A(p+2) and the symmetric groups S-p, Sp+1, where p is a prime, are also uniquely determined by their degree patterns and orders.
引用
收藏
页码:449 / 456
页数:8
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