with \(\kappa_{i,0\ }=0\) and \(\gamma_{i,0}=1\) for all \(i\)  .
If, in addition, we create the  P x 1 matrices  \(\mathbf{b}_{\kappa}\) and \(\mathbf{n}\) and Q x 1 matrices   \(\mathbf{b}_{\gamma}\) and \(\mathbf{d}\), where