Cosets of Free Field Algebras via Arc Spaces

Cosets of Free Field Algebras via Arc Spaces
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通过弧空间的自由场代数陪集

DOI:
10.1093/imrn/rnac367
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发表时间:
2023
影响因子:
1
通讯作者:
Song, Bailin
Song, Bailin
中科院分区:
数学1区
文献类型:
--
作者:
Linshaw, Andrew R.;Song, Bailin

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利用弧空间的不变理论,我们找到了自由域代数内某些仿射顶点代数陪集的极小强生成集,它们与经典的Howe对偶有关。这些结果有几个应用。首先,对于任一顶点代数,我们有一个微分代数的满射同态;等价地,的奇异支集是相关格式的弧空间的闭子格式。我们给出了经典自由顶点代数的许多新例子(即,这个映射是同构的),包括对所有正整数和。我们还给出了新的例子,其中该映射的核是非平凡的,但有限地生成为微分理想。接下来,我们证明了由Creutzig,Gao和第一作者猜想的在临界水平上的次正则代数的陪集实现。最后,我们给出了一些新的涉及仿射顶点超代数的水平秩对偶。
Using the invariant theory of arc spaces, we find minimal strong generating sets for certain cosets of affine vertex algebras inside free field algebras that are related to classical Howe duality. These results have several applications. First, for any vertex algebra, we have a surjective homomorphism of differential algebras; equivalently, the singular support ofis a closed subscheme of the arc space of the associated scheme. We give many new examples of classically free vertex algebras (i.e., this map is an isomorphism), includingfor all positive integersand. We also give new examples where the kernel of this map is nontrivial but is finitely generated as a differential ideal. Next, we prove a coset realization of the subregular-algebra ofat a critical level that was previously conjectured by Creutzig, Gao, and the 1st author. Finally, we give some new level-rank dualities involving affine vertex superalgebras.
DOI: 10.1007/s00222-019-00884-3
发表时间: 2018-01
影响因子: 3.1
作者:
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发表时间: 2004
期刊: Nuclear Physics
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DOI: 10.1016/j.aim.2015.03.007
发表时间: 2011
期刊: arXiv: Representation Theory
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