COCO2P Packageの紹介

Abstract

We will briefly introduce COC02P Package, which is a GAP-package for the computation with color graphs, especially with coherent configurations. The author is particularly interested in computing automorphisms and isomorphisms of them. Some experiments of computing automorphism groups arc shown. Fusions of color graphs arc computed by COCO2P. We can see whether a color graph is a coherent configuration or not by COCO2P function lsWLStableColorGraph and also see whether a coherent configuration is Schurian or non Schurian by computing automorphism group of it. We will give an example of a fusion scheme which is WL-stable but not a coherent configuration from [3].