paper

Module categories of simple current extensions of vertex operator algebras

arXiv:math/0211255

Abstract

In this article, we study module categries of simple current extensions of vertex operator algebras. Under certain assumptions, we show that every module for a rational vertex operator algebra be lifted to a twisted module for an extended algebra with an abelian symmetry.

latex 14 pages, version 2: English corrected, version 3: Hypotheis I is proved in Lemma 3.1

Module categories of simple current extensions of vertex operator algebras · wovepaper