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{latex}
\large
$$
H_{channel}  \cong {{Q_{channel} } \over {\bar G^{{\raise0.7ex\hbox{$2$} \!\mathord{\left/
 {\vphantom {2 3}}\right.\kern-\nulldelimiterspace}
\!\lower0.7ex\hbox{$3$}}} \left[ {{{4\nu w_{channel} } \over {\sum {K_{{\rm{minor}}} } }}} \right]^{{\raise0.7ex\hbox{$1$} \!\mathord{\left/
 {\vphantom {1 3}}\right.\kern-\nulldelimiterspace}
\!\lower0.7ex\hbox{$3$}}}  \cdot w_{channel} }}
$$
{latex}