Automorphism Groups and Twisted Modules for Lattice Vertex Operator Algebras
arXiv:math/9808088
Abstract
We give a complete description of the full automorphism group of a lattice vertex operator algebra, determine the twisted Zhu's algebra for the automorphism lifted from the -1 isometry of the lattice and classify the corresponding irreducible twisted modules through the twisted Zhu algebra.
Latex2e, 20 pages