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arXiv 0712.4069math.GRmath.AG
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有限单群的Bogomolov乘子

The Bogomolov multiplier of finite simple groups

Boris Kunyavskii

摘要:

由对G的任意交换子群的限制为零的所有上同调类组成的有限群G的Schur乘子的子群称为G的Bogomolov乘子。证明了若G是拟单或几乎单的,则除PSL(3,4)的某些覆盖外,G的Bogomolov乘子是平凡的.

英文摘要:

The subgroup of the Schur multiplier of a finite group G consisting of all cohomology classes whose restriction to any abelian subgroup of G is zero is called the Bogomolov multiplier of G. We prove that if G is quasisimple or almost simple, its Bogomolov multiplier is trivial except for the case of certain covers of PSL(3,4).

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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