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Understanding surjective morphism of sheaves

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#algebraic-geometry #sheaf-theory
276
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Is sheafification monoidal?

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#category-theory #sheaf-theory #monoid #adjoint-functors #monoidal-categories
128
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Pullback of sheaves topology and sites

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#category-theory #sheaf-theory #pullback #grothendieck-topologies
115
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sheaf isomorphisms does not necessarily glue to be isomorphism

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#algebraic-geometry #sheaf-theory
1.7k
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Inverse image ideal sheaf and pullback of ideal sheaf

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#abstract-algebra #algebraic-geometry #sheaf-theory
151
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Proof of Sheafification in Bosch

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#algebraic-geometry #sheaf-theory
231
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Stalks, Germs and Localisation

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#algebraic-geometry #ring-theory #sheaf-theory #affine-varieties #germs
173
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$X_f$ of locally ringed space $(X, O_X)$.

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#algebraic-geometry #sheaf-theory #schemes #ringed-spaces
42
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Irreducible Subsets of Ringed Spaces

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#algebraic-geometry #sheaf-theory #affine-varieties
109
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Given a scheme $X$ and invertible sheaf $L$ on $X$, show that $\mathcal{Hom}(L, \mathcal{O}_X)$ is invertible

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#algebraic-geometry #sheaf-theory #schemes
99
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Covering scheme by affines, $X = \bigcup X_f$

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#algebraic-geometry #sheaf-theory #schemes #affine-schemes
274
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Projective space $Proj$

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#algebraic-geometry #sheaf-theory #affine-schemes #projective-schemes #quasicoherent-sheaves
84
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Left Exactness of global sections functor over quasi compact sheaves

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#algebraic-geometry #modules #sheaf-theory #exact-sequence #quasicoherent-sheaves
139
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Looking for a criterion for split exact sequence of sheaves of modules similar to Miyata's theorem

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#algebraic-geometry #sheaf-theory
155
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Lemma for showing that presheaves are colimits of representables

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#algebraic-geometry #category-theory #sheaf-theory #limits-colimits #functors

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