\[\mathbf{A}_{P}=\begin{bmatrix}-\mathbf{A}(\tau_{0},z_{0})&\mathbf{I}&%
\boldsymbol{{0}}&\cdots&\boldsymbol{{0}}&\boldsymbol{{0}}\\
\boldsymbol{{0}}&-\mathbf{A}(\tau_{1},z_{1})&\mathbf{I}&\cdots&\boldsymbol{{0}%
}&\boldsymbol{{0}}\\
\vdots&\vdots&\ddots&\ddots&\vdots&\vdots\\
\boldsymbol{{0}}&\boldsymbol{{0}}&\cdots&-\mathbf{A}(\tau_{P-2},z_{P-2})&%
\mathbf{I}&\boldsymbol{{0}}\\
\boldsymbol{{0}}&\boldsymbol{{0}}&\cdots&\boldsymbol{{0}}&-\mathbf{A}(\tau_{P-%
1},z_{P-1})&\mathbf{I}\end{bmatrix}\]