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arXiv 0904.2432math.RAmath.QA
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BC_r分次交矩阵代数与B_r型分次子代数的实现,$r \geq 3$

Realizations of BC_r graded intersection matrix algebras with grading subalgebras of type B_r, $r \geq 3$

Sandeep Bhargava, Yun Gao

摘要:

本文研究了B_r型Cartan矩阵A在根系$Δ_{B_r}$中具有d个任意长根的仿射生成的交矩阵代数im(A^d),其中$r \geq 3$ .证明了im(A^d)同构于$so_{2r+1}(a,η,C,χ)$的泛覆盖代数,其中$a$是具有对合$η$的结合代数,$C$是具有埃尔米特形式$χ$的$a$ -模.我们提供了所有四个组件$a$、$η$、$C$和$χ$的描述。

英文摘要:

We study intersection matrix algebras im(A^d) that arise from affinizing a Cartan matrix A of type B_r with d arbitrary long roots in the root system $Δ_{B_r}$, where $r \geq 3$. We show that im(A^d) is isomorphic to the universal covering algebra of $so_{2r+1}(a,η,C,χ)$, where $a$ is an associative algebra with involution $η$, and $C$ is an $a$-module with hermitian form $χ$. We provide a description of all four of the components $a$, $η$, $C$, and $χ$.

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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