List questions from sheaf-cohomology

Published on 04 May 2018 - 8:58

78

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Sheaf cohomology of $\mathbb{A}^\infty_k$ without the origin

Published on 09 May 2018 - 19:46

48

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injective objects for section functor

Published on 22 Mar 2026 - 7:35

936

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Does Exactness in Presheaves Imply Exactness in Sheaves?

Published on 11 May 2018 - 10:49

161

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Problem on the Cech Cohomology of a Sheaf over a Paracompact Space

Published on 13 May 2018 - 16:54

63

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Can a coherent sheaf with no global sections have non-trivial higher cohomology?

Published on 16 May 2018 - 1:06

138

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Basic questions about Verdier duality

Published on 23 Mar 2026 - 7:43

128

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Vanishing Cohomology Groups

Published on 22 May 2018 - 0:19

77

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Checking that the perverse $t$-structure is a $t$-structure

Published on 22 Mar 2026 - 19:50

272

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Base change of cohomology for schemes and formal schemes.

Published on 23 May 2018 - 9:20

128

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Does $ H^1 (X , \mathcal{O}_X^{ \ * }) $ represent the following moduli functor?

Published on 23 Mar 2026 - 0:21

130

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$H^1(X,\mathcal O_X)\neq 0$

Published on 25 May 2018 - 10:43

1.5k

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Why does the sheaf cohomology of the constant sheaf on $\mathbb{R}$ vanish?

Published on 29 May 2018 - 23:14

201

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The definition of the cohomology of an Abelian sheaf

Published on 06 Jun 2018 - 13:12

57

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Comparing cohomologies of $\mathcal{O}_X$ and $\mathcal{O}_{X_\text{red}}$

Published on 16 Jun 2018 - 20:09

List Question

Consequence from Leray-Serre Spectral Sequence

Sheaf cohomology of $\mathbb{A}^\infty_k$ without the origin

injective objects for section functor

Does Exactness in Presheaves Imply Exactness in Sheaves?

Problem on the Cech Cohomology of a Sheaf over a Paracompact Space

Can a coherent sheaf with no global sections have non-trivial higher cohomology?

Basic questions about Verdier duality

Vanishing Cohomology Groups

Checking that the perverse $t$-structure is a $t$-structure

Base change of cohomology for schemes and formal schemes.

Does $ H^1 (X , \mathcal{O}_X^{ \ * }) $ represent the following moduli functor?

$H^1(X,\mathcal O_X)\neq 0$

Why does the sheaf cohomology of the constant sheaf on $\mathbb{R}$ vanish?

The definition of the cohomology of an Abelian sheaf

Comparing cohomologies of $\mathcal{O}_X$ and $\mathcal{O}_{X_\text{red}}$

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