Quasitriangular structures on the 8-dimensional Kac algebra K_8
arXiv:2001.00296
Abstract
In this note, we give a list of all non-isomorphic quasitriangular structures on the 8-dimension Kac algebra K_8.
We were informed that the main result of this paper already appeared in Michihisa Wakui's paper "Polynomial invariants for a semisimple and cosemisimple Hopf algebra of finite dimension " as its Lemma 5.4. We thank Professor Kenichi Shimizu for informing us this fact