On the Structure of the Fusion Ideal
- Author(s): Douglas, Christopher L.
- et al.
Published Web Locationhttps://doi.org/10.1007/s00220-009-0795-3
We prove that there is a finite level-independent bound on the number of relations defining the fusion ring of positive energy representations of the loop group of a simple, simply connected Lie group. As an illustration, we compute the fusion ring of G 2 at all levels.