Characteristic polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda + 2\right)^{2} \left(\lambda^{3} + 4 \lambda^{2} - 13 \lambda - 59\right)^{2} \left(\lambda^{8} + 6 \lambda^{7} - 4 \lambda^{6} - 733 \lambda^{5} - 6607 \lambda^{4} - 32860 \lambda^{3} - 96023 \lambda^{2} - 142399 \lambda - 76249\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda + 2\right) \left(\lambda^{3} + 4 \lambda^{2} - 13 \lambda - 59\right) \left(\lambda^{8} + 6 \lambda^{7} - 4 \lambda^{6} - 733 \lambda^{5} - 6607 \lambda^{4} - 32860 \lambda^{3} - 96023 \lambda^{2} - 142399 \lambda - 76249\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 0 & 0 & 4 & 4 & 0 & 6 & 6 & 6 & 6 & 18 & 15 & 8 & 8 & 16 & 16 & 10 \\ 1 & -1 & 0 & 0 & 0 & 0 & 4 & 4 & 0 & 0 & 4 & 4 & 6 & 6 & 12 & 6 & 8 \\ 1 & 0 & -1 & 0 & 0 & 0 & 0 & 0 & 4 & 4 & 4 & 4 & 6 & 6 & 6 & 12 & 8 \\ 1 & 0 & 0 & -1 & 1 & 0 & 0 & 2 & 0 & 2 & 4 & 6 & 0 & 3 & 6 & 6 & 8 \\ 1 & 1 & 1 & 2 & -1 & 0 & 0 & -2 & 0 & -2 & 0 & -4 & 0 & -3 & 0 & 0 & 0 \\ 0 & 1 & 1 & 0 & 0 & -2 & 0 & 0 & 0 & 0 & 0 & 0 & 4 & 4 & 4 & 4 & 6 \\ 0 & 1 & 0 & 1 & 0 & 0 & -2 & 1 & 0 & 0 & 0 & 1 & 0 & 2 & 4 & 0 & 6 \\ 0 & 1 & 0 & 0 & 1 & 1 & 2 & -2 & 0 & 0 & 0 & -1 & 0 & -2 & 0 & 0 & 0 \\ 0 & 0 & 1 & 1 & 0 & 0 & 0 & 0 & -2 & 1 & 0 & 1 & 0 & 2 & 0 & 4 & 6 \\ 0 & 0 & 1 & 0 & 1 & 1 & 0 & 0 & 2 & -2 & 0 & -1 & 0 & -2 & 0 & 0 & 0 \\ 0 & 0 & 0 & 2 & 1 & 0 & 1 & 0 & 1 & 0 & -1 & 0 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 1 & 0 & 0 & 1 & 0 & 1 & 2 & 0 & 0 & 0 & 0 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 1 & 1 & -\frac{1}{2} & 1 & -\frac{1}{2} & -2 & -3 & -3 & 0 & -2 & -2 & 4 \\ 0 & 0 & 0 & 0 & 0 & 1 & 0 & 2 & 0 & 2 & 0 & 3 & 2 & -1 & 2 & 2 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 2 & \frac{3}{2} & 0 & 0 & 3 & 2 & 1 & \frac{1}{2} & 0 & 1 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & \frac{3}{2} & 3 & 2 & 1 & \frac{1}{2} & 1 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & \frac{3}{2} & 3 & 3 & 0\end{pmatrix}\notag\end{equation}$$