2 papers
math.QA2024
Extra automorphisms of cyclic orbifolds of lattice vertex operator algebras
Ching Hung Lam, Hiroki Shimakura
In this article, we study the automorphism group of the cyclic orbifold of a vertex operator algebra associated with a rootless even lattice for a lift of a fixed-point free isomet…
math.QA2024
Automorphism groups of parafermion vertex operator algebras: general case
Ching Hung Lam, Xingjun Lin, Hiroki Shimakura
We complete the program for determining the full automorphism groups of all parafermion vertex operator algebras associated with simple Lie algebras and positive integral levels. W…