Module category and C2-cofiniteness of affine vertex operator superalgebras

Module category and C2-cofiniteness of affine vertex operator superalgebras
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仿射顶点算子超代数的模范畴和C2余有限性

DOI:
10.1016/j.jalgebra.2021.12.023
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发表时间:
2021-01
期刊:
J. Algebra
影响因子:
--
通讯作者:
Lin Xingjun
Lin Xingjun
中科院分区:
其他
文献类型:
--
作者:
Ai Chunrui;Lin Xingjun

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研究了C2-余有限顶点算子超代数的权1子空间的李代数结构。对任意正整数k,顶点算子超代数Lsl(1| n+ 1)(k,0)和L o s p(2| 2 n)(k,0)有不等价的无穷多个不可约容许模。作为结果,我们证明了Lg(k,0)是C2-上有限的当且仅当g是单李代数,或g= osp(1| 2 n),且k是非负整数。作为应用,我们证明了LG(3)(1,0)是顶点算子超代数,使得普通LG(3)(1,0)-模范畴是半单的,但LG(3)(1,0)不是C2-上有限的.
In this paper, we investigate the Lie algebra structures of weight one subspaces of C 2-cofinite vertex operator superalgebras. We also show that for any positive integer k, vertex operator superalgebras L s l (1| n+ 1)(k, 0) and L o s p (2| 2 n)(k, 0) have inequivalent infinitely many irreducible admissible modules. As a consequence, we give a proof of the fact that L g (k, 0) is C 2-cofinite if and only if g is either a simple Lie algebra, or g= o s p (1| 2 n), and k is a nonnegative integer. As an application, we show that L G (3)(1, 0) is a vertex operator superalgebra such that the category of ordinary L G (3)(1, 0)-modules is semisimple but L G (3)(1, 0) is not C 2-cofinite.
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