Question

Presheaf of bounded holomorphic functions on a Riemann surface is not a sheaf

score 127 · Answer 1 · 2026-03-29 16:50:17

127

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Presheaf of bounded holomorphic functions on a Riemann surface is not a sheaf

Published on 29 Mar 2026 - 16:50

score 161 · Answer 2 · 2026-03-26 01:17:28

161

Views

Hartshorne proposition II.5.4

Published on 26 Mar 2026 - 1:17

score 122 · Answer 3 · 2026-03-26 08:07:16

122

Views

direct image of lisse sheaves

Published on 26 Mar 2026 - 8:07

score 44 · Answer 4 · 2023-05-26 17:35:04

44

Views

Transition function of tensor product of two locally free sheaves

Published on 26 May 2023 - 17:35

score 107 · Answer 5 · 2026-03-29 18:37:26

107

Views

incident variety as the projectivization (relative proj of symmetric sheaf) of some locally free sheaf on the dual projective space

Published on 29 Mar 2026 - 18:37

score 79 · Answer 6 · 2026-03-26 01:17:58

79

Views

Double dual of locally free $\mathcal{O}_X$-module of finite rank

Published on 26 Mar 2026 - 1:17

score 66 · Answer 7 · 2023-05-30 13:29:46

66

Views

The disjoint union map of the stalk maps is continuous

Published on 30 May 2023 - 13:29

score 60 · Answer 8 · 2023-05-30 16:49:58

60

Views

Sheaf Hom, what is the codomain of this "sheaf" on $X$

Published on 30 May 2023 - 16:49

score 284 · Answer 9 · 2026-03-26 17:53:31

284

Views

The category of affine schemes is anti-equivalent to the category of commutative rings

Published on 26 Mar 2026 - 17:53

score 22 · Answer 10 · 2026-03-29 18:32:26

22

Views

base-point-free linear series induce morphism to projective space coordinate-freely (for infinite-dimensional case)?

Published on 29 Mar 2026 - 18:32

score 83 · Answer 11 · 2026-03-26 21:12:30

83

Views

Flabby sheaves are acyclic using Godement resolution

Published on 26 Mar 2026 - 21:12

score 64 · Answer 12 · 2026-03-29 18:32:25

64

Views

Does $\left(\mathscr{L},\left[s_0, s_1, \ldots\right]\right)$ correspond to morphism $X \rightarrow \mathbb{P}^{\infty}$?

Published on 29 Mar 2026 - 18:32

score 123 · Answer 13 · 2023-06-02 13:17:30

123

Views

A ring homomorphism includes a sheaf morphism (pullback)

Published on 02 Jun 2023 - 13:17

score 44 · Answer 14 · 2026-03-28 12:06:22

44

Views

What is a germ of a presheaf?

Published on 28 Mar 2026 - 12:06

score 161 · Answer 15 · 2023-06-04 19:40:37

161

Views

Question on a (presumably) basic $O_X$-module isomorphism

Published on 04 Jun 2023 - 19:40

List Question

Presheaf of bounded holomorphic functions on a Riemann surface is not a sheaf

Hartshorne proposition II.5.4

direct image of lisse sheaves

Transition function of tensor product of two locally free sheaves

incident variety as the projectivization (relative proj of symmetric sheaf) of some locally free sheaf on the dual projective space

Double dual of locally free $\mathcal{O}_X$-module of finite rank

The disjoint union map of the stalk maps is continuous

Sheaf Hom, what is the codomain of this "sheaf" on $X$

The category of affine schemes is anti-equivalent to the category of commutative rings

base-point-free linear series induce morphism to projective space coordinate-freely (for infinite-dimensional case)?

Flabby sheaves are acyclic using Godement resolution

Does $\left(\mathscr{L},\left[s_0, s_1, \ldots\right]\right)$ correspond to morphism $X \rightarrow \mathbb{P}^{\infty}$?

A ring homomorphism includes a sheaf morphism (pullback)

What is a germ of a presheaf?

Question on a (presumably) basic $O_X$-module isomorphism

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