 \begin{pmatrix} 0 & 0 & 0 & 0 & \dots & 0 & 0 \\ 0 & 0 & c_0& 0 & \dots & 0 & 0 \\ 0 & -c_0 & 0 & c_0 & \dots & 0 & 0 \\ \vdots&\vdots&\vdots&\vdots&\ddots&\vdots&\vdots\\ 0 & 0 & 0 & 0 & \dots & 0 & c_{n-0} \\ 0 & 0 & 0 & 0 & \dots & -c_{n-0} & 0 \\ \end{pmatrix} \begin{pmatrix} {\overrightarrow{{\bf e_0}}}(