2 citations · 2 across the 3 of their papers we have counts for
3 papers
math.QA2005
Pseudoderivations, pseudoautomorphisms and simple current modules for vertex algebras
Haisheng Li
We exhibit a connection between Etingof-Kazhdan's notion of pseudoderivation and a certain construction of simple current modules for a vertex operator algebra and meanwhile we int…
math.QA2005★ 2 cited
Nonlocal vertex algebras generated by formal vertex operators
Haisheng Li
This is the first paper in a series to study vertex algebra-like objects arising from infinite-dimensional quantum groups (quantum affine algebras and Yangians). In this paper we l…
math.QA2004
On the concepts of intertwining operator and tensor product module in vertex operator algebra theory
Yi-Zhi Huang, James Lepowsky, Haisheng Li +1
We produce counterexamples to show that in the definition of the notion of intertwining operator for modules for a vertex operator algebra, the commutator formula cannot in general…