470 citations · 1.1k across the 90 of their papers we have counts for
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An analogue of the Hom functor and a generalized nuclear democracy theorem
Haisheng Li
We give an analogue of the Hom functor and prove a generalized form of the nuclear democracy theorem of Tsuchiya and Kanie by using a notion of tensor product for two modules for a…
Modular invariance of trace functions in orbifold theory
Chongying Dong, Haisheng Li, Geoffrey Mason
The goal of the present paper is to provide a mathematically rigorous foundation to certain aspects of rational orbifold conformal field theory, in other words the theory of ration…
Twisted representations of vertex operator algebras and associative algebras
C. Dong, H. Li, G. Mason
Let V be a vertex operator algebra and g an automorphism of order T. We construct a sequence of associative algebras A_{g,n}(V) with n\in\frac{1}{T}\Z nonnegative such that A_{g,n}…
Vertex operator algebras and associative algebras
Chongying Dong, Haisheng Li, Geoffrey Mason
Let V be a vertex operator algebra. We construct a sequence of associative algebras A_n(V) (n=0,1,2,...) such that A_{n}(V) is a quotient of A_{n+1}(V) and a pair of functors betwe…
The radical of a vertex operator algebra
C. Dong, H. Li, G. Mason +1
The radical of a vertex operator algebra is defined to be the subspace of consisting of vectors such that the zero mode on where i…
Compact automorphism groups of vertex operator algebras
Chongying Dong, Haisheng Li, Geoffrey Mason
Let be a simple vertex operator algebra which admits the continuous, faithful action of a compact Lie group of automorphisms. We establish a Schur-Weyl type duality between…