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arXiv 2103.15161math.GR
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有限群中的交换子方程

Commutator Equations in Finite Groups

Kanto Irimoto, Enrique Torres-Giese

摘要:

求有限群中元素的有序交换元组的个数的问题等价于求由交换子关系确定的方程组的解集的大小,该交换子关系在有序元组中的任何一对元素之间施加交换性。我们认为这种类型的系统的情况下,有序的三元组和表达的解决方案集的大小方面的不可约字符组。所得到的公式是Frobenius的特征标公式的自然扩张,该公式计算了有限群中群元素是有序元素对的交换子的方法.我们将讨论如何使用我们的公式来研究这些系统的方程所提供的概率分布,我们显示明确的计算二面体群。

英文摘要:

The problem of finding the number of ordered commuting tuples of elements in a finite group is equivalent to finding the size of the solution set of the system of equations determined by the commutator relations that impose commutativity among any pair of elements from an ordered tuple. We consider this type of systems for the case of ordered triples and express the size of the solution set in terms of the irreducible characters of the group. The obtained formulas are natural extensions of Frobenius' character formula that calculates the number of ways a group element is a commutator of an ordered pair of elements in a finite group. We discuss how our formulas can be used to study the probability distributions afforded by these systems of equations, and we show explicit calculations for dihedral groups.

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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