Question

Dependance of the étale fundamental group of a scheme with the base geometric point

score 48 · Answer 1 · 2026-03-27 13:48:34

48

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Dependance of the étale fundamental group of a scheme with the base geometric point

Published on 27 Mar 2026 - 13:48

score 114 · Answer 2 · 2026-03-25 19:05:10

114

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Question about inclusion map of an open set of a scheme

Published on 25 Mar 2026 - 19:05

score 122 · Answer 3 · 2026-03-29 16:25:49

122

Views

Explicit base change for a curve

Published on 29 Mar 2026 - 16:25

score 58 · Answer 4 · 2026-03-25 22:26:53

58

Views

How to show that $r\colon Sh(X_{et})\to Sh(X_{et}^f)$ is a full functor

Published on 25 Mar 2026 - 22:26

score 101 · Answer 5 · 2026-03-25 20:36:12

101

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What is the precise meaning of residue of a smooth variety?

Published on 25 Mar 2026 - 20:36

score 90 · Answer 6 · 2026-03-25 07:45:56

90

Views

EDITED: What is the correspondence between the associated sheaves and subschemes of Weil prime divisors?

Published on 25 Mar 2026 - 7:45

score 102 · Answer 7 · 2020-01-20 22:20:40

102

Views

Is the closed subscheme theoretic image also the category theoretic image?

Published on 20 Jan 2020 - 22:20

score 106 · Answer 8 · 2020-01-22 08:57:58

106

Views

If $X$ is a proper scheme over $k$, then the composition of $X\rightarrow \text{Spec}k\rightarrow \mathbb{P}_k^1$ is proper?

Published on 22 Jan 2020 - 8:57

score 108 · Answer 9 · 2026-03-25 17:42:19

108

Views

Unramified morphism of schemes is locally of finite presentation

Published on 25 Mar 2026 - 17:42

score 128 · Answer 10 · 2026-03-25 19:04:33

128

Views

Non - affine subscheme of $Spec(\mathbb{Z}[t])$

Published on 25 Mar 2026 - 19:04

score 138 · Answer 11 · 2026-03-25 19:05:13

138

Views

Question about an inclusion of a closed scheme into an affine scheme

Published on 25 Mar 2026 - 19:05

score 40 · Answer 12 · 2020-01-31 18:02:09

40

Views

Subset of a scheme induced (ideal-theoretically) by a collection of given points

Published on 31 Jan 2020 - 18:02

score 114 · Answer 13 · 2026-04-01 22:36:15

114

Views

vector bundles $\mathcal F, \mathcal G$ such that $\mathcal Hom (\mathcal F, \mathcal G) $ is a direct sum of copies of $\mathcal O_X$

Published on 01 Apr 2026 - 22:36

score 60 · Answer 14 · 2020-02-05 11:20:19

60

Views

Question about $O_X$-ideals: why is $\{ y \in X: 1 \notin Q_y \}$ closed?

Published on 05 Feb 2020 - 11:20

score 315 · Answer 15 · 2026-03-25 14:19:44

315

Views

restriction map of divisor class groups

Published on 25 Mar 2026 - 14:19

List Question

Dependance of the étale fundamental group of a scheme with the base geometric point

Question about inclusion map of an open set of a scheme

Explicit base change for a curve

How to show that $r\colon Sh(X_{et})\to Sh(X_{et}^f)$ is a full functor

What is the precise meaning of residue of a smooth variety?

EDITED: What is the correspondence between the associated sheaves and subschemes of Weil prime divisors?

Is the closed subscheme theoretic image also the category theoretic image?

If $X$ is a proper scheme over $k$, then the composition of $X\rightarrow \text{Spec}k\rightarrow \mathbb{P}_k^1$ is proper?

Unramified morphism of schemes is locally of finite presentation

Non - affine subscheme of $Spec(\mathbb{Z}[t])$

Question about an inclusion of a closed scheme into an affine scheme

Subset of a scheme induced (ideal-theoretically) by a collection of given points

vector bundles $\mathcal F, \mathcal G$ such that $\mathcal Hom (\mathcal F, \mathcal G) $ is a direct sum of copies of $\mathcal O_X$

Question about $O_X$-ideals: why is $\{ y \in X: 1 \notin Q_y \}$ closed?

restriction map of divisor class groups

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