\begin{table}%t4
%\centering
 \caption{LF parameters for red and early.
type galaxies, in the redshift interval 0.4--3.5.\label{tab:redlf} }
$$
\begin{tabular}{cr@{~$\pm$~}lr@{~$\pm$~}l}
\hline\hline \noalign{\smallskip}
\multicolumn{1}{c}{Parameter}&\multicolumn{2}{c}{Red} &\multicolumn{2}{c}{Early}
        \\
\noalign{\smallskip} \hline \noalign{\smallskip}
$N       $   &\multicolumn{2}{c}{913}      &\multicolumn{2}{c}{472}             
\\
$\phi_0^*$   &\multicolumn{2}{c}{0.0020}    &\multicolumn{2}{c}{0.0017}         
    \\
$\gamma  $   &--1.045   &0.13                &   --1.45 & 0.16              \\
$z_{\rm cut} $   & 0.65    & 0.01               & 0.67   & 0.01                     
 \\
$\alpha_b$   & --0.76   & 0.06               & --0.40&0.1                      \\
$M_b^*   $   & --21.29  & 0.1                & --21.22 & 0.12                     
   \\
$\alpha_f$   &  --1.77  & 0.2                &  --1.54  & 0.22                    
             \\
$M_f^*   $   & --17.04  & 0.12               & --17.06 & 0.12                     
    \\
\noalign{\smallskip} \hline \noalign{\smallskip}
\end{tabular}
$$
\end{table}