Symmetric invariant bilinear forms on modular vertex algebras
Symmetric invariant bilinear forms on modular vertex algebras
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模顶点代数上的对称不变双线性形式
DOI:
10.1016/j.jalgebra.2018.08.001
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发表时间:
2018
影响因子:
0.9
通讯作者:
Qiang Mu
中科院分区:
文献类型:
--
作者:
Haisheng Li;Qiang Mu
In this paper, we study contragredient duals and invariant bilinear forms for modular vertex algebras (in characteristic p). We first introduce a bialgebra H and we then introduce a notion of H-module vertex algebra and a notion of (V, H)-module for an H-module vertex algebra V. Then we give a modular version of Frenkel–Huang–Lepowsky's theory and study invariant bilinear forms on an H-module vertex algebra. As the main results, we obtain an explicit description of the space of invariant bilinear forms on a general H-module vertex algebra, and we apply our results to affine vertex algebras and Virasoro vertex algebras.