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arXiv 0901.4791math.QA
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关于可积模范畴的一个对称性

On a symmetry of the category of integrable modules

William J. Cook, Christopher Sadowski

摘要:

李海生证明了给定顶点代数(V,Y(\cdot,x))的模(W,Y_W(\cdot,x)),如果Δ(x)满足一定的自然条件,则可以得到一个新的V-模W^Δ =(W,Y_W(Δ(x)\cdot,x)). Li给出了V=L(k,0)(一个与仿射李代数相关联的顶点算子代数,k是正整数)的一组Δ-算子.对每个不可约L(k,0)-模W,当Δ与极小余权相关联时,我们找到了W^Δ的一个最高权向量.由此我们完全确定了这些Δ-算子在L(k,0)-模的同构等价类集合上的作用。

英文摘要:

Haisheng Li showed that given a module (W,Y_W(\cdot,x)) for a vertex algebra (V,Y(\cdot,x)), one can obtain a new V-module W^Δ = (W,Y_W(Δ(x)\cdot,x)) if Δ(x) satisfies certain natural conditions. Li presented a collection of such Δ-operators for V=L(k,0) (a vertex operator algebra associated with an affine Lie algebras, k a positive integer). In this paper, for each irreducible L(k,0)-module W, we find a highest weight vector of W^Δ when Δis associated with a miniscule coweight. From this we completely determine the action of these Δ-operators on the set of isomorphism equivalence classes of L(k,0)-modules.

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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