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arXiv 1703.00635math.GR
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偶数阶有限Cθθ-群的分类及其应用

Classification of finite Cθθ-groups with even order and its application

Ali Mahmoudifar

摘要:

一个可被3整除的阶有限群,其中3-元的中心化子是3-子群,称为Cθθ-群。有限群G的素图(或Gruenberg-Kegel图)记为Γ(G)(或GK(G)),它是一个熟悉的图.也称Γ(G)的度序列为G的度模式,记为D(G)。本文首先对偶数阶有限Cθθ-群进行了分类。证明了存在无穷多个Cθθ-群具有相同的度模式.最后证明了单群PSL(2,q)和几乎单群PGL(2,q)(其中q > 9是3的幂)是由它们的度模式决定的.

英文摘要:

A finite group of order divisible by 3 in which centralizers of 3-elements are 3-subgroups will be called a Cθθ-group. The prime graph (or Gruenberg-Kegel graph) of a finite group G is denoted by Γ(G) (or GK(G)) and its a familiar. Also the degrees sequence of Γ(G) is called the degree pattern of G and is denoted by D(G). In this paper, first we classify the finite Cθθ-groups with even order. Then we show that there are infinitely many Cθθ-groups with the same degree pattern. Finally, we proved that the simple group PSL(2, q) and the almost simple group PGL(2, q), where q > 9 is a power of 3, are determined by their degree pattern.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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