A simple sufficient condition for triviality of obstruction in the orbifold construction for subfactors

Abstract

We present a simple sufficient condition for triviality of obstruction in the orbifold construction. As an application, we can show the existence of subfactors with principal graph $D_{2n}$ without full use of Ocneanu's paragroup theory.

8pages

References in corpus (1)

• On $\alpha$-induction, chiral generators and modular invariants for subfactors