Almost simple groups with no product of two primes dividing three character degrees

被引:0
|
作者
Aziziheris, Kamal [1 ,2 ]
Ahmadpour, Mohammad [3 ]
机构
[1] Univ Tabriz, Fac Math Sci, Dept Pure Math, Tabriz, Iran
[2] Inst Res Fundamental Sci IPM, Sch Math, POB 19395-5746, Tehran, Iran
[3] Univ Mohaghegh Ardabili, Fac Sci, Dept Math, Ardebil 5619911367, Iran
关键词
NONSOLVABLE GROUPS; SOLVABLE-GROUPS; NUMBER;
D O I
10.1515/jgth-2018-0188
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
Let Irr(G) denote the set of complex irreducible characters of a finite group G, and let cd(G) be the set of degrees of the members of Irr(G). For positive integers k and l, we say that the finite group G has the property P-k(l) if, for any distinct degrees a(1), a(2), ..., a(k) is an element of cd(G), the total number of (not necessarily different) prime divisors of the greatest common divisor gcd (a(1), a(2), ..., a(k)) is at most l - 1. In this paper, we classify all finite almost simple groups satisfying the property P-3(2). As a consequence of our classification, we show that if G is an almost simple group satisfying P-3(2), then vertical bar cd(G)vertical bar <= 8.
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页码:865 / 892
页数:28
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