Characteristic polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda^{4} + \lambda^{3} - 8 \lambda^{2} - 36 \lambda - 11\right) \left(\lambda^{8} + 10 \lambda^{7} - 39 \lambda^{6} - 664 \lambda^{5} - 2462 \lambda^{4} - 8894 \lambda^{3} - 38736 \lambda^{2} - 120040 \lambda - 159127\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\left(\lambda + 1\right) \left(\lambda^{4} + \lambda^{3} - 8 \lambda^{2} - 36 \lambda - 11\right) \left(\lambda^{8} + 10 \lambda^{7} - 39 \lambda^{6} - 664 \lambda^{5} - 2462 \lambda^{4} - 8894 \lambda^{3} - 38736 \lambda^{2} - 120040 \lambda - 159127\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 4 & 4 & 2 & 3 & 0 & 0 & 0 & 3 & 8 & 8 & 0 & 0 \\ 1 & -1 & 2 & 0 & 2 & 0 & 0 & -4 & 2 & 0 & 0 & 0 & 0 \\ 1 & 1 & -2 & 0 & 0 & 4 & 2 & 8 & 0 & 3 & 3 & 0 & 8 \\ 2 & 1 & 0 & 0 & 4 & 4 & 4 & 0 & 0 & 0 & 0 & 0 & 0 \\ 0 & 2 & 0 & 1 & -1 & 0 & 2 & 0 & 0 & 0 & 0 & -4 & 0 \\ 0 & 2 & 1 & 0 & 0 & -1 & 0 & 2 & 0 & 2 & 2 & 0 & 0 \\ 0 & 0 & 2 & 1 & 1 & 1 & -2 & 0 & 0 & 0 & 4 & 8 & 0 \\ 0 & 0 & 1 & 0 & 0 & 1 & 0 & -2 & 0 & 0 & 0 & 2 & 3 \\ 0 & 0 & 0 & 2 & 1 & 0 & 0 & 0 & 0 & 4 & 4 & 0 & 0 \\ 0 & 0 & 0 & 0 & 2 & -2 & 2 & -1 & 2 & 0 & 1 & 0 & 2 \\ 0 & 0 & 0 & 0 & 2 & 4 & 1 & 1 & 0 & 0 & -1 & 2 & 2 \\ 0 & 0 & 0 & 0 & 0 & 0 & 1 & 2 & 0 & 0 & 1 & -2 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 2 & 4 & 3 & 0\end{pmatrix}\notag\end{equation}$$