Question

Stacks Project proof that gluing locally ringed spaces which happen to be schemes gives a scheme

score 138 · Answer 1 · 2022-01-18 02:10:53

138

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Stacks Project proof that gluing locally ringed spaces which happen to be schemes gives a scheme

Published on 18 Jan 2022 - 2:10

score 217 · Answer 2 · 2022-04-12 13:57:20

217

Views

A detail in the proof that tensor product of sheaves of $\mathcal{O}_X$-modules commutes with pullback

Published on 12 Apr 2022 - 13:57

score 117 · Answer 3 · 2022-05-04 17:58:27

117

Views

Is the ideal product presheaf a sheaf?

Published on 04 May 2022 - 17:58

score 92 · Answer 4 · 2022-05-20 02:24:28

92

Views

Well-definedness of ring operations on stalks

Published on 20 May 2022 - 2:24

score 148 · Answer 5 · 2022-05-23 09:29:50

148

Views

Definition of restriction of morphism of ringed space?

Published on 23 May 2022 - 9:29

score 40 · Answer 6 · 2026-02-23 11:48:37

40

Views

Does the "sheaf of diffeologically-smooth real-valued functions" functor reflect isomorphisms?

Published on 23 Feb 2026 - 11:48

score 99 · Answer 7 · 2022-06-23 00:37:14

99

Views

Constructing a "sheaf of vector fields" for a flasque sheaf of $k$-algebras

Published on 23 Jun 2022 - 0:37

score 215 · Answer 8 · 2022-06-23 17:47:51

215

Views

Is the "sheaf of derivations" locally free?

Published on 23 Jun 2022 - 17:47

score 51 · Answer 9 · 2022-07-08 20:29:09

51

Views

Is the forgetful functor from locally ringed spaces to topological spaces a full functor? Faithful? What about when restricted to schemes?

Published on 08 Jul 2022 - 20:29

score 46 · Answer 10 · 2022-07-12 18:41:24

For a locally ringed space $(X,\mathcal{O})$, is there a sheaf of ideals whose stalks are the max ideals of the stalks of $\mathcal{O}$?

score 125 · Answer 11 · 2022-08-28 20:30:53

125

Views

Morphisms of algebraic varieties are regular?

Published on 28 Aug 2022 - 20:30

score 57 · Answer 12 · 2022-10-06 14:58:57

57

Views

Function vanishing on ringed spaces

Published on 06 Oct 2022 - 14:58

score 84 · Answer 13 · 2022-10-21 13:23:18

84

Views

Surjectivity of $\mathscr G\to f_*f^{-1}\mathscr G$

Published on 21 Oct 2022 - 13:23

score 67 · Answer 14 · 2022-11-01 16:36:55

67

Views

Existence of morphism from a locally ringed space $X \to Spec(\mathbb{F}_p)$

Published on 01 Nov 2022 - 16:36

score 65 · Answer 15 · 2022-11-03 22:13:56

65

Views

function on structure sheaf and its values at points

Published on 03 Nov 2022 - 22:13

List Question

Stacks Project proof that gluing locally ringed spaces which happen to be schemes gives a scheme

A detail in the proof that tensor product of sheaves of $\mathcal{O}_X$-modules commutes with pullback

Is the ideal product presheaf a sheaf?

Well-definedness of ring operations on stalks

Definition of restriction of morphism of ringed space?

Does the "sheaf of diffeologically-smooth real-valued functions" functor reflect isomorphisms?

Constructing a "sheaf of vector fields" for a flasque sheaf of $k$-algebras

Is the "sheaf of derivations" locally free?

Is the forgetful functor from locally ringed spaces to topological spaces a full functor? Faithful? What about when restricted to schemes?

For a locally ringed space $(X,\mathcal{O})$, is there a sheaf of ideals whose stalks are the max ideals of the stalks of $\mathcal{O}$?

Morphisms of algebraic varieties are regular?

Function vanishing on ringed spaces

Surjectivity of $\mathscr G\to f_*f^{-1}\mathscr G$

Existence of morphism from a locally ringed space $X \to Spec(\mathbb{F}_p)$

function on structure sheaf and its values at points

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