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arXiv 1107.3076math.RTmath.QA
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特征$p$中$S_n$的Young正规形和单模

Young's seminormal form and simple modules for $S_n$ in characteristic $p$

Steen Ryom-Hansen

摘要:

我们从由Jucys-Murphy元生成的群代数的子代数中将对称群$S_n$的积分Specht模实现为诱导模.我们由此推断出,$FS_n$的简单模是由相应的Jucys-Murphy幂等元的模$p$的约简生成的。

英文摘要:

We realize the integral Specht modules for the symmetric group $S_n$ as induced modules from the subalgebra of the group algebra generated by the Jucys-Murphy elements. We deduce from this that the simple modules for $FS_n$ are generated by reductions modulo $p$ of the corresponding Jucys-Murphy idempotents.

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