Čech cochain group (source code)

= Čech cochain group
{c}
{title2=$\check C^p(\mathcal U,\mathcal F)$}

The degree-$p$ Čech cochain group for an ordered cover is $\prod_{i_0<\cdots<i_p}\mathcal F(U_{i_0}\cap\cdots\cap U_{i_p})$.