Characteristic polynomial
$$\begin{equation}\lambda^{12} + 4 \lambda^{11} - 10 \lambda^{10} - 16 \lambda^{9} - 424 \lambda^{8} - 6235 \lambda^{7} - 18259 \lambda^{6} - 56369 \lambda^{5} - 193644 \lambda^{4} - 141304 \lambda^{3} + 1782600 \lambda^{2} + 3425036 \lambda + 3741929\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\lambda^{12} + 4 \lambda^{11} - 10 \lambda^{10} - 16 \lambda^{9} - 424 \lambda^{8} - 6235 \lambda^{7} - 18259 \lambda^{6} - 56369 \lambda^{5} - 193644 \lambda^{4} - 141304 \lambda^{3} + 1782600 \lambda^{2} + 3425036 \lambda + 3741929\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 0 & 0 & 0 & 0 & 0 & 0 & 4 & 4 & 0 & 20 \\ 2 & 0 & 0 & 0 & 0 & 0 & 2 & 2 & 0 & 0 & 9 & 0 \\ 1 & 0 & 0 & 2 & 0 & 2 & -2 & -2 & 0 & 0 & -9 & -16 \\ 1 & 0 & 0 & -1 & 2 & 0 & 0 & 0 & 0 & 0 & 0 & 16 \\ 0 & 1 & 0 & 2 & -1 & 0 & 0 & 0 & 0 & 0 & 6 & 0 \\ 0 & 3 & 2 & 0 & 2 & 0 & 0 & 0 & 0 & 0 & -6 & 0 \\ 0 & 0 & 1 & 3 & 0 & 0 & -1 & 0 & 4 & 2 & -6 & 0 \\ 0 & 0 & 1 & -1 & 0 & 0 & 2 & 0 & -2 & 0 & 6 & 0 \\ 0 & 0 & 0 & 0 & 1 & -3 & 0 & -2 & -4 & -2 & 0 & 0 \\ 0 & 0 & 0 & 0 & 3 & 7 & 2 & 4 & 6 & 3 & 0 & 0 \\ 0 & 0 & 0 & 0 & 0 & 0 & \frac{5}{3} & 1 & 0 & 0 & 0 & \frac{8}{3} \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & \frac{13}{4} & \frac{9}{4} & \frac{3}{2} & 0\end{pmatrix}\notag\end{equation}$$