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arXiv 1209.3620math.GR
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由特征标乘积确定共轭类大小

Determination of Conjugacy Class Sizes from Products of Characters

Ivan Andrus, Pál Hegedűs

摘要:

Robinson证明了,对于所有的$n$,特征度是通过知道同一性可以表示为$n$分解器的乘积的方式的数量来确定的。早些时候,Strunkov证明了$p$ -defect 0的特征的存在性可以通过计算某些涉及共轭和共轭的方程的解来确定。在本文中,我们证明了类似的Robinson和Strunkov的定理切换共轭类和字符。我们发现,计数的平凡字符在某些产品的字符确定共轭类的大小和存在的共轭类与$p$ -缺陷0的多重性。

英文摘要:

Robinson showed that the character degrees are determined by knowing, for all $n$, the number of ways that the identity can be expressed as a product of $n$ commutators. Earlier, Strunkov showed that the existence of characters of $p$-defect 0 can be determined by counting solutions to certain equations involving commutators and conjugates. In this paper, we prove analogs to Robinson's and Strunkov's theorems by switching conjugacy classes and characters. We show that counting the multiplicity of the trivial character in certain products of characters determines the conjugacy class sizes and existence of conjugacy classes with $p$-defect 0.

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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