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Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.

1 vote

Why must one sheafify quotients of sheaves?

I don't really know what you need, but here is my understanding: There are two ways to define a sheaf of abelian groups: I. as a local homeomorphic projection with some properties on fibers. II. as …
Alan Zhang's user avatar