2 papers
math.QA2025
Coupling a vertex algebra to a large center
Boris L. Feigin, Simon D. Lentner
Suppose a Lie group acts on a vertex algebra . In this article we construct a vertex algebra , which is an extension of by a big central vertex subalgebra ide…
math.QA2024
Twisted vertex algebra modules for irregular connections: A case study
Boris L. Feigin, Simon D. Lentner
A vertex algebra with an action of a group comes with a notion of -twisted modules, forming a -crossed braided tensor category. For a Lie group , one might instead wis…