2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/53764For the series associated to a group or coset R.C.F.T. there is a simple universal form for the inverse of the handle operator in the ring of fusions. These formulae may be easily understood from the quantization of the associated Chern-Simons theory. (Transcript of talk given at STRINGS '93 (Berkeley) Conference)4 pagesHigh Energy Physics - Theorytext