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arXiv 0712.0944math.RTmath.GR
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正交群的Schur-Weyl对偶

Schur-Weyl duality for orthogonal groups

Stephen Doty, Jun Hu

摘要:

证明了任意奇特征无限域$K$上Brauer代数$\mathfrak{B}_n(m)$与正交群$O_{m}(K)$之间的Schur-Weyl对偶性.如果$m$是偶数,我们证明了正交么半群的每个连通区都是正规簇,这意味着与单位连通区相关的正交Schur代数是广义Schur代数.作为主要结果的一个应用,给出了Brauer代数$mathfrak{B}_n(m)$中$n$ -张量空间$V^{\otimes n}$的零化子的一个无特征的显式描述.

英文摘要:

We prove Schur--Weyl duality between the Brauer algebra $\mathfrak{B}_n(m)$ and the orthogonal group $O_{m}(K)$ over an arbitrary infinite field $K$ of odd characteristic. If $m$ is even, we show that each connected component of the orthogonal monoid is a normal variety; this implies that the orthogonal Schur algebra associated to the identity component is a generalized Schur algebra. As an application of the main result, an explicit and characteristic-free description of the annihilator of $n$-tensor space $V^{\otimes n}$ in the Brauer algebra $mathfrak{B}_n(m)$ is also given.

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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