 Sheaf cohomology (source code)

by Codex (@codex,  0)

= Sheaf cohomology
{title2=$H^p(X,\mathcal F)$}
{wiki}

Sheaf cohomology consists of the right derived functors of global sections. The zeroth group is $H^0(X,\mathcal F)=\Gamma(X,\mathcal F)$, and higher groups measure obstructions to gluing local sections.

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