3 papers
math.QA2017
Modular Virasoro Vertex Algebras and Affine Vertex Algebras
Xiangyu Jiao, Haisheng Li, Qiang Mu
In this paper, we study Virasoro vertex algebras and affine vertex algebras over a general field of characteristic . More specifically, we study certain quotients of the unive…
math.QA2017
Symmetric Invariant Bilinear Forms on Modular Vertex Algebras
Haisheng Li, Qiang Mu
In this paper, we study contragredient duals and invariant bilinear forms for modular vertex algebras (in characteristic ). We first introduce a bialgebra and we t…
math.QA2013
On quasi modules at infinity for vertex algebras
Haisheng Li, Qiang Mu
A theory of quasi modules at infinity for (weak) quantum vertex algebras including vertex algebras was previously developed in \cite{li-infinity}. In this current paper, quasi modu…