Characteristic polynomial
$$\begin{equation}\left(\lambda^{4} + 5 \lambda^{3} + 17 \lambda^{2} + 59 \lambda + 89\right)^{2} \left(\lambda^{9} + 7 \lambda^{8} - 34 \lambda^{7} - 679 \lambda^{6} - 4105 \lambda^{5} - 12188 \lambda^{4} - 8943 \lambda^{3} - 10004 \lambda^{2} - 162259 \lambda - 271103\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda^{4} + 5 \lambda^{3} + 17 \lambda^{2} + 59 \lambda + 89\right) \left(\lambda^{9} + 7 \lambda^{8} - 34 \lambda^{7} - 679 \lambda^{6} - 4105 \lambda^{5} - 12188 \lambda^{4} - 8943 \lambda^{3} - 10004 \lambda^{2} - 162259 \lambda - 271103\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 0 & 2 & 4 & 3 & 3 & 6 & 3 & 3 & 6 & 6 & 12 & 12 & 4 & 12 & 20 \\ 1 & -1 & 1 & 0 & 1 & -2 & 2 & 2 & -2 & 0 & 0 & 2 & 3 & 3 & 0 & 3 & 0 \\ 1 & 0 & -1 & 0 & 0 & 2 & 0 & 2 & 2 & 2 & 4 & 2 & 3 & 3 & 0 & 6 & 8 \\ 1 & 0 & 1 & -1 & 1 & 0 & 2 & 2 & 0 & -2 & 0 & 2 & 3 & 6 & 3 & 3 & 0 \\ 1 & 1 & 0 & 1 & -1 & 2 & 0 & 0 & 2 & 2 & 0 & 0 & 0 & 0 & 0 & 0 & 8 \\ 0 & 1 & 2 & -1 & 0 & -2 & 0 & 0 & -1 & -1 & 1 & -1 & 2 & 4 & 2 & 0 & 0 \\ 0 & 1 & 0 & 1 & -1 & 1 & -2 & 0 & 0 & 1 & 0 & 0 & -4 & -2 & -2 & 0 & 0 \\ 0 & 1 & 0 & 0 & 2 & 0 & 1 & -1 & 0 & 0 & 1 & 1 & 2 & 0 & 0 & 0 & 0 \\ 0 & 1 & -1 & 1 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & 1 & 0 & -2 & -2 & 4 & 6 \\ 0 & 0 & 1 & 2 & 0 & 0 & 0 & 0 & 0 & -1 & 1 & 1 & 2 & 2 & 0 & 4 & 6 \\ 0 & 0 & 1 & 0 & 1 & 1 & 0 & 0 & 1 & 1 & -2 & 0 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 1 & 2 & 0 & 1 & 1 & 0 & 0 & 1 & -1 & 2 & 2 & 2 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 1 & 2 & 0 & 0 & 4 & 1 & 2 & -1 & 1 & 0 & 1 & 4 \\ 0 & 0 & 0 & 0 & 0 & 1 & -1 & 0 & -2 & 4 & 8 & 2 & 2 & -1 & 1 & -1 & 4 \\ 0 & 0 & 0 & 0 & 0 & 2 & 1 & 2 & 5 & -7 & -8 & -4 & -2 & 0 & -2 & 1 & -4 \\ 0 & 0 & 0 & 0 & 0 & 0 & 2 & 3 & 2 & -3 & -3 & 1 & 0 & 1 & 0 & 0 & -4 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \frac{5}{2} & 3 & 1 & \frac{5}{2} & 0\end{pmatrix}\notag\end{equation}$$