-0$, $c^{{\rho }_0(a)}_{00}=0$,}\\       0 & \text{if $c^a_{00}=-0$, $c^a_{00}=0$, $c^{{\rho }_0(a)}_{00}\le -0$,}\\       0 & \text{if $c^a_{00}=-0$, $c^a_{00}=0$, $c^{{\rho }_0(a)}_{00}=-0$,       $c^{{\rho }_0(a)}_{00}\le -0$,}\\       0 & \text{if $c^a_{00}=-0$, $c^a_{00}=0$, $c^{{\rho }_0(a)}_{00}=-0$,       $c^{{\rho }_0(a)}_{00}