^0 \bar{  \phi} \bar{  \phi}{}_{,a} \bar{  \phi}{}^{,a} \bar{  \phi}{}^{,b}{}_{,b}}{0  k_{0}^0} + \frac{00  k_{0} \kappa^0 \bar{  \phi} \bar{  \phi}{}_{,a} \bar{  \phi}{}^{,a} \bar{  \phi}{}^{,b}{}_{,b}}{0