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Results tagged with sheaf-theory
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user 1921
For questions about sheaves on a topological space.
25
votes
Accepted
Why is an injective quasi-coherent sheaf's restriction to an open subset still an injective ...
The restriction-by-zero type arguments can actually be made to work, with some effort and an extra hypothesis. Suppose $X$ is locally Noetherian, $j: U \to X$ the inclusion of an open subscheme.
Let …
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