ann F
annihilator F
The annihilator of a sheaf of modules $\mathcal F$ is the ideal corresponding to the kernel of the map of sheaves $$ \mathcal O_X \to \mathcal Hom_{\mathcal O_X}(\mathcal F, \mathcal F).b $$
You may use ann as a synonym for annihilator.
The source of this document is in /build/reproducible-path/macaulay2-1.25.05+ds/M2/Macaulay2/packages/Varieties/doc-sheaves.m2:983:0.