List questions from sheaf-theory

Published on 01 Dec 2011 - 22:28

7.2k

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tensor product of sheaves commutes with inverse image

Published on 18 Dec 2011 - 1:44

1.9k

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Fiber product of sheaves

Published on 18 Dec 2011 - 10:28

501

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Existence of acyclic coverings for a given sheaf

Published on 21 Dec 2011 - 13:12

436

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Euler exact sequence of sheaves on $\mathbb P^n(\mathbf C)$

Published on 28 Dec 2011 - 17:31

457

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Godement resolution using monads

Published on 26 Mar 2026 - 3:09

2.3k

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Sanity check about Wikipedia definition of differentiable manifold as a locally ringed space

Published on 09 Feb 2012 - 3:08

122

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Is $(f_A)\times B\to f_(A\times f^*B)$ an iso in a elementary topos?

Published on 30 Mar 2026 - 17:05

965

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Question about proof that Flabby sheaves are acyclic

Published on 17 Feb 2012 - 16:48

1k

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Apparent contradiction using Mayer-Vietoris for Sheaf cohomology

Published on 22 Feb 2012 - 10:28

850

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Flabby sheaves and exact sequences of sheaves - Question about proof

Published on 23 Feb 2012 - 22:58

1.8k

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$\Gamma(U,\cdot)$ is a left-exact functor $\mathfrak{Ab}(X)\to\mathfrak{Ab}$

Published on 26 Feb 2012 - 10:17

799

Views

Coherent $G$-sheaf on algebraic varieties

Published on 04 Mar 2012 - 12:42

321

Views

Pullback and pushforward

Published on 09 Mar 2012 - 22:34

592

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An example of a Grothendieck topology

Published on 25 Mar 2026 - 17:22

List Question

Computing Exts and projective covers

tensor product of sheaves commutes with inverse image

Fiber product of sheaves

Existence of acyclic coverings for a given sheaf

Euler exact sequence of sheaves on $\mathbb P^n(\mathbf C)$

Godement resolution using monads

Sanity check about Wikipedia definition of differentiable manifold as a locally ringed space

Is $(f_A)\times B\to f_(A\times f^*B)$ an iso in a elementary topos?

Question about proof that Flabby sheaves are acyclic

Apparent contradiction using Mayer-Vietoris for Sheaf cohomology

Flabby sheaves and exact sequences of sheaves - Question about proof

$\Gamma(U,\cdot)$ is a left-exact functor $\mathfrak{Ab}(X)\to\mathfrak{Ab}$

Coherent $G$-sheaf on algebraic varieties

Pullback and pushforward

An example of a Grothendieck topology

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