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15
275
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different definitions of fine sheaves / partitions of unity

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#sheaf-theory #sheaf-cohomology
465
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Resolution of the constant sheaf $\mathbb C$.

Published on
#homology-cohomology #homological-algebra #sheaf-cohomology #de-rham-cohomology
35
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Given principal bundle $P_O(E)\to E$ with fibration $O_n\to P_O(E)\to X$, there is an exact sequence...

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#abstract-algebra #general-topology #algebraic-topology #sheaf-cohomology
143
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Simplicial approach to Cech cohomology?

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#general-topology #algebraic-topology #sheaf-cohomology #simplicial-stuff
87
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Is the sheaf cohomology only a sheaf for flabby sheaves?

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#algebraic-topology #sheaf-theory #sheaf-cohomology #derived-functors #grothendieck-topologies
453
Views

Does Direct limit/union of subspaces commute with sheaf cohomology

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#general-topology #algebraic-geometry #sheaf-cohomology #limits-colimits
302
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Algebraic geometry reference

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#algebraic-geometry #reference-request #schemes #sheaf-cohomology
164
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Sheafification in the derived category.

Published on
#homotopy-theory #sheaf-theory #sheaf-cohomology #derived-functors #higher-category-theory
654
Views

Mayer-Vietoris Sequence for Cohomology with Supports

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#algebraic-geometry #homology-cohomology #sheaf-theory #sheaf-cohomology
121
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A help in exact sequence and Castelnuovo-Mumford regularity

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#algebraic-geometry #sheaf-theory #sheaf-cohomology
551
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Explicitly Understanding a Case of Dolbeault's Theorem.

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#algebraic-geometry #complex-geometry #sheaf-cohomology
251
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Map comparing Alexander-Spanier and Čech cohomology

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#sheaf-theory #sheaf-cohomology
153
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Examples for failure of cohomology presheaf to be a sheaf

Published on
#homology-cohomology #sheaf-theory #sheaf-cohomology
91
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Why does the vanishing of this cohomology say that?

Published on
#algebraic-geometry #vector-bundles #sheaf-cohomology
269
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Long exact sequence of sheaf cohomology from the normal bundle of $\mathbb{P}^1$ in $\mathbb{P}^2$

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#algebraic-geometry #exact-sequence #sheaf-cohomology

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