Sign sequences and decomposition numbers

Sign sequences and decomposition numbers
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符号序列和分解数

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
Wei Hao Teo
Wei Hao Teo
中科院分区:
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文献类型:
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作者:
Kai Meng Tan;Wei Hao Teo

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我们得到了由Uv(lize le)的Fock空间表示的标准基产生的v-分解数dλμ(v)的一个封闭公式,其中划分λ是由μ通过移动其Young图中的一些节点而得到的,所有这些节点都具有相同的e-剩余.我们还证明了当这些v-分解数在v = 1时,我们得到了Schur代数和对称群的相应分解数。
We obtain a closed formula for the v-decomposition numbers dλμ(v) arising from the canonical basis of the Fock space representation of Uv(ŝle), where the partition λ is obtained from μ by moving some nodes in its Young diagram, all of which having the same e-residue. We also show that when these v-decomposition numbers are evaluated at v = 1, we obtain the corresponding decomposition numbers for the Schur algebras and symmetric groups.