Journal of Algebra ( IF 0.8 ) Pub Date : 2021-06-09 , DOI: 10.1016/j.jalgebra.2021.06.007 Hongyan Guo
In this paper, we explore a canonical connection between the algebra of q-difference operators , affine Lie algebras and affine vertex algebras associated to certain subalgebra of the Lie algebra . We also introduce and study a category of -modules. More precisely, we obtain a realization of as a covariant algebra of the affine Lie algebra , where is a 1-dimensional central extension of . We prove that restricted -modules of level correspond to -equivariant ϕ-coordinated quasi-modules for the vertex algebra , where is a generalized affine Lie algebra of . In the end, we show that objects in the category are restricted -modules, and we classify simple modules in the category .
中文翻译:
代数q -difference运营商,仿射顶点代数,及其模块
在本文中,我们探讨了q差分算子的代数之间的规范联系, 仿射李代数和与某些子代数相关的仿射顶点代数 李代数的 . 我们还介绍和研究了一个类别 的 - 模块。更准确地说,我们得到了一个实现 作为仿射李代数的协变代数 , 在哪里 是一维中心扩展 . 我们证明限制- 级别模块 相当于 -equivariant ϕ -顶点代数的协调拟模, 在哪里 是广义仿射李代数 . 最后,我们展示了类别中的对象 受到限制 -modules,我们将简单的模块归入类别 .