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15
201
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Not understanding a proof about coherent sheaves on projective schemes in Hartshorne

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#algebraic-geometry #proof-explanation #schemes #sheaf-cohomology #coherent-sheaves
253
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Cech Cohomology and module structure

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#algebraic-geometry #sheaf-cohomology
157
Views

Dimension of an Open Covering - Serre's FAC

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#general-topology #algebraic-geometry #sheaf-theory #sheaf-cohomology #coherent-sheaves
238
Views

References on de Rham and Poincaré via sheaves

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#algebraic-topology #manifolds #sheaf-cohomology
223
Views

Sheafification of constant real sheaf on smooth manifold and sheaf of smooth functions

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#differential-geometry #algebraic-geometry #sheaf-theory #sheaf-cohomology #de-rham-cohomology
330
Views

Serre says open covers do not form a set, why? Directed sets and limits.

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#general-topology #set-theory #sheaf-theory #sheaf-cohomology #coherent-sheaves
821
Views

Importance of Vanishing Cohomology

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#algebraic-geometry #sheaf-theory #sheaf-cohomology #coherent-sheaves
68
Views

Computing maps in Leray spectral sequence

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#algebraic-geometry #sheaf-cohomology #spectral-sequences
548
Views

Cousin I problem in $\mathbb{C}$ and Mittag-Leffler theorem

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#complex-analysis #holomorphic-functions #sheaf-cohomology #meromorphic-functions
60
Views

Cohomology of varieties defined solely by their embedding equation

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#algebraic-geometry #sheaf-cohomology
75
Views

Is there a by-hand prove that $\Gamma(\mathbb{C}P^n,E)$ is finite dimensional for a holomorphic vector bundle $E$?

Published on
#algebraic-geometry #complex-geometry #several-complex-variables #sheaf-cohomology
110
Views

Sheafs with $F(X)=\emptyset$

Published on
#algebraic-topology #sheaf-theory #sheaf-cohomology
116
Views

Cech cohomology of coefficient in a presheaf and in its associated sheaf

Published on
#homological-algebra #sheaf-cohomology
59
Views

Exact sequence of sheafs

Published on
#riemann-surfaces #sheaf-cohomology
75
Views

Is the genus of biholomorphic Riemann surfaces the same?

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#riemann-surfaces #sheaf-cohomology

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