Characteristic polynomial
$$\begin{equation}\lambda \left(\lambda + 1\right) \left(\lambda + 2\right) \left(\lambda + 4\right) \left(\lambda + 5\right) \left(\lambda^{8} - 6 \lambda^{7} - 67 \lambda^{6} + 4 \lambda^{5} + 368 \lambda^{4} - 9472 \lambda^{3} - 24576 \lambda^{2} + 56320 \lambda + 182272\right)\notag\end{equation}$$
Minimal polynomial
$$\begin{equation}\lambda \left(\lambda + 1\right) \left(\lambda + 2\right) \left(\lambda + 4\right) \left(\lambda + 5\right) \left(\lambda^{8} - 6 \lambda^{7} - 67 \lambda^{6} + 4 \lambda^{5} + 368 \lambda^{4} - 9472 \lambda^{3} - 24576 \lambda^{2} + 56320 \lambda + 182272\right)\notag\end{equation}$$
Quantum multiplication matrix
$$\begin{equation}\begin{pmatrix}0 & 2 & 8 & 6 & 6 & 6 & 6 & 18 & 12 & 32 & 24 & 24 & 40 \\ 1 & 0 & 0 & 1 & 8 & 2 & 0 & 8 & 4 & 0 & 6 & -6 & -16 \\ 1 & 0 & 0 & 1 & 2 & 2 & 2 & 6 & 4 & 6 & 6 & 6 & 8 \\ 1 & 0 & 2 & -1 & 0 & 2 & 0 & 4 & 4 & 12 & 6 & 6 & 16 \\ 0 & 1 & 1 & 0 & 0 & 1 & 0 & 1 & 0 & 2 & 4 & 0 & -6 \\ 0 & 1 & 0 & 3 & 2 & -1 & 0 & 4 & 2 & 4 & 4 & 0 & 0 \\ 0 & 1 & 0 & -1 & 0 & 1 & 0 & -2 & -2 & 8 & 4 & 8 & 12 \\ 0 & 0 & 1 & 1 & 0 & 0 & 0 & -1 & 2 & 2 & 0 & 0 & 6 \\ 0 & 0 & 1 & 0 & 0 & 0 & 0 & 1 & -2 & 2 & 2 & 2 & 0 \\ 0 & 0 & 0 & 0 & 1 & 4 & 1 & 3 & 0 & 3 & 4 & 2 & 4 \\ 0 & 0 & 0 & 0 & 1 & -3 & -1 & 2 & 4 & -3 & -4 & -2 & -2 \\ 0 & 0 & 0 & 0 & 1 & 0 & 1 & -2 & -2 & 1 & 0 & 0 & 2 \\ 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 0 & 5 & 4 & 2 & 0\end{pmatrix}\notag\end{equation}$$