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Stein Factorization

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#algebraic-geometry #sheaf-theory
257
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Not Following Serre's Argument: Extension/Restriction of a Sheaf, Continuity

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#general-topology #algebraic-geometry #continuity #sheaf-theory #coherent-sheaves
417
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Is the sheafication of a "presheaf of $\mathcal{O}_X$-modules" an $\mathcal{O}_X$-module?

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#algebraic-geometry #modules #sheaf-theory
1k
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Why is the bounded functions not a sheaf?

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#algebraic-geometry #sheaf-theory
320
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Extension Classes $Ext^1 _X (\mathcal{F},\mathcal{G})$ of Sheaves

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#algebraic-geometry #sheaf-theory
71
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Difference between Derived Functors $\mathcal{Ext}^i(F,G)$ and $Ext^i_X(F,G)$

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#algebraic-geometry #sheaf-theory
129
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isomorphism between category of sheaves and morphisms of abelian groups

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#category-theory #sheaf-theory
79
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proving that a functor is an equivalence of categories

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#category-theory #sheaf-theory
155
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Categories for which every contiuous sheaf is representable

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#category-theory #sheaf-theory #limits-colimits #yoneda-lemma #representable-functor
693
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Global section of tensor product of sheaves

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#algebraic-geometry #sheaf-theory #sheaf-cohomology
48
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looking for a proof or a reference of classical result

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#category-theory #differential-forms #sheaf-theory #sheaf-cohomology #d-modules
70
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Weak Nullstellensatz in locally ringed spaced?

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#algebraic-geometry #sheaf-theory
62
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What's the meaning of $\mathcal O_S$-algebra?

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#algebraic-geometry #sheaf-theory #schemes
64
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How to show the two definitions of $\mathcal O_S$-algebra are equivalent?

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#algebraic-geometry #sheaf-theory #schemes
48
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Which page can I find the definition of $\mathcal O_S$-algebra in "Stacks Project"?

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#algebraic-geometry #sheaf-theory #schemes

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