Definition:Sheaf of Modules Generated By Global Sections
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Definition
Let $\struct {X, \OO_X}$ be a ringed space.
A sheaf of modules $\FF$ over $\OO_X$ is generated by global sections, if there is a set $I$ and an epimorphism
- $\begin{xy}\xymatrix@L+2mu@+1em{
\bigoplus_I \OO_X \ar[r] & \FF }\end{xy}$
in the category of $\OO_X$-modules.