Decomposition of the lattice vertex operator algebra V2Al

Decomposition of the lattice vertex operator algebra V2Al
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DOI:
10.1016/s0021-8693(03)00507-6
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发表时间:
2004-02
期刊:
影响因子:
0.9
通讯作者:
C. Lam;H. Yamada
C. Lam;H. Yamada
中科院分区:
数学3区
文献类型:
--
作者:
C. Lam;H. Yamada

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受Dong等人的工作的启发[Griess代数的结合子代数和相关主题,在:J. Ferrar,K. Harada(Eds.),Monster and Lie Algebras,de Gruyter,柏林,1998]中,我们研究了格顶点算子代数V2的一个分解,它是Virasoro顶点算子代数和仿费米子代数W1 +1(2 l/(l+3))的某个张量积的不可约模的直和。我们发现顶点算子代数V2 Al含有一个同构于中心荷为2l/(l +3)的仿费米子代数Wl+1(2l/(l +3))的子代数.还得到了顶点算子代数V2 Alas的完全分解,它是W =L(c1,0)<$L(c2,0)<$<$L(cl,0)<$Wl+1(2l/(l+3))的不可约模的直和,其中ci,i= 1,.,l由离散级数ci=1−6/(i+2)(i+3)给出。
Motivated by the work of Dong et al. [Associative subalgebras of Griess algebra and related topics, in: J. Ferrar, K. Harada (Eds.), Proc. Conf. Monster and Lie Algebras, de Gruyter, Berlin, 1998], we study a decomposition of the lattice vertex operator algebra V2 Alas a direct sum of irreducible modules of a certain tensor product of Virasoro vertex operator algebras and a parafermion algebra Wl+1(2l/(l+3)). We find that the vertex operator algebra V2 Alcontains a subalgebra isomorphic to a parafermion algebra Wl+1(2l/(l+3)) of central charge 2l/(l+3). A complete decomposition of the vertex operator algebra V2 Alas a direct sum of irreducible modules of W =L(c1,0)⊗L(c2,0)⊗⋯⊗L(cl,0)⊗Wl+1(2l/(l+3)) , where ci, i=1,…,l, is given by the discrete series ci=1−6/(i+2)(i+3), is also obtained.