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arXiv 0811.3666math.RTmath.GR
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融合系统的一个特征子群

A characteristic subgroup for fusion systems

Silvia Onofrei, Radu Stancu

摘要:

作为一个对应的素数2格劳伯曼的$ZJ$ -定理,Stellmacher证明,任何非平凡的2群$S$有一个非平凡的特征子群$W(S)$与以下性质。对任意有限的无$Σ_4$群$G$,若$S$是$G$的Sylow 2-子群且$O_2(G)$是自中心的,则子群$W(S)$在$G$中正规.我们将Stellmacher的结果推广到融合系统。对奇素数也可以构造类似的$W(S)$,并产生一个Glauberman函子。

英文摘要:

As a counterpart for the prime 2 to Glauberman's $ZJ$-theorem, Stellmacher proves that any nontrivial 2-group $S$ has a nontrivial characteristic subgroup $W(S)$ with the following property. For any finite $Σ_4$-free group $G$, with $S$ a Sylow 2-subgroup of $G$ and with $O_2(G)$ self-centralizing, the subgroup $W(S)$ is normal in $G$. We generalize Stellmacher's result to fusion systems. A similar construction of $W(S)$ can be done for odd primes and gives rise to a Glauberman functor.

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