=\begin{pmatrix} \left( \Phi^{({\mathrm{Bes}})}_{0}\right)_{00}(z)& 0 & \left( \Phi^{({\mathrm{Bes}})}_{0}\right)_{00}(z) \\ 0 & 0 & 0 \\ \left( \Phi^{({\mathrm{Bes}})}_{0}\right)_{00}(z) & 0 & \left( \Phi^{({\mathrm{Bes}})}_{0} \right)_{00}(z) \end{pmatrix}