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15
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Torsion in cotangent sheaf of the cusp

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#algebraic-geometry #sheaf-theory #complex-geometry #vector-bundles
930
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Stalks of the ideal sheaf of an irreducible subscheme

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#algebraic-geometry #sheaf-theory #schemes
223
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Is the scheme-theoretic image stable under taking products?

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#algebraic-geometry #sheaf-theory #schemes
216
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Does sheafication commute with pushforward?

Published on
#category-theory #sheaf-theory
187
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Is the inverse image of a sheaf along a embedding always a sheaf?

Published on
#category-theory #sheaf-theory
66
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Shouldn't the topological space be $T_1$ for the Skyscraper sheaf to be a sheaf?

Published on
#sheaf-theory
319
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Construction of Grassmann variety representing the Grassmann functor

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#algebraic-geometry #sheaf-theory
59
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Ideal Sheaf: Making sure I got it right

Published on
#definition #sheaf-theory #quasicoherent-sheaves
923
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Hypothesis under which sheaf cohomology is limit of Čech cohomology

Published on
#sheaf-theory #sheaf-cohomology
840
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Definition of the degree of a sheaf

Published on
#algebraic-geometry #sheaf-theory #intersection-theory #coherent-sheaves
1k
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Why isn't every $\mathcal O_X$-module quasi-coherent?

Published on
#modules #sheaf-theory #quasicoherent-sheaves
351
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Intuitive way to understand identity/gluing axioms of sheaf

Published on
#category-theory #sheaf-theory #schemes
62
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Linked (sheaf, cosheaf)-pair on Alexandrov spaces

Published on
#algebraic-topology #sheaf-theory #sheaf-cohomology
164
Views

Presheaf with same global sections as associated sheaf

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#algebraic-geometry #sheaf-theory
40
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Which kind of covers preserve the smooth structure?

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#general-topology #sheaf-theory #smooth-manifolds

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