Question

[Definition included]Morphisms agree in intersections of a cover comes from a morphism $X\to Y$ for scheme $X,Y$

score 129 · Answer 1 · 2026-03-30 21:06:13

129

Views

[Definition included]Morphisms agree in intersections of a cover comes from a morphism $X\to Y$ for scheme $X,Y$

Published on 30 Mar 2026 - 21:06

score 358 · Answer 2 · 2026-04-08 01:07:38

358

Views

Prove that an open subfunctor of a scheme is itself a scheme

Published on 08 Apr 2026 - 1:07

score 56 · Answer 3 · 2026-03-25 21:49:26

56

Views

Global proof of deformation correspondence

Published on 25 Mar 2026 - 21:49

score 333 · Answer 4 · 2017-11-13 01:21:43

333

Views

Is the diagonal morphism of schemes the result of a base change?

Published on 13 Nov 2017 - 1:21

score 196 · Answer 5 · 2017-11-14 14:22:55

196

Views

Image of quasi-compact scheme in affine scheme contained in $V(I)$ iff image of ideal is contained in nilradical.

Published on 14 Nov 2017 - 14:22

score 206 · Answer 6 · 2017-11-15 05:27:09

206

Views

Intuition about Schemes over a Fixed Scheme

Published on 15 Nov 2017 - 5:27

score 247 · Answer 7 · 2026-02-23 10:49:50

247

Views

Relation between $\mathcal{O}_Y\rightarrow f_*\mathcal{O}_{X}$ and $f^{-1}\mathcal{O}_Y\rightarrow \mathcal{O}_X$ being epimorphism/monomorphism.

Published on 23 Feb 2026 - 10:49

score 212 · Answer 8 · 2026-03-25 21:47:25

212

Views

Does a locally projective scheme over an affine scheme embed into projective space?

Published on 25 Mar 2026 - 21:47

score 284 · Answer 9 · 2017-11-27 09:38:16

284

Views

Relation of the category of $k$-schemes and the category of $k$-varieties

Published on 27 Nov 2017 - 9:38

score 382 · Answer 10 · 2026-03-27 19:53:35

382

Views

Are all connected and locally integral affine schemes globally integral?

Published on 27 Mar 2026 - 19:53

score 103 · Answer 11 · 2017-11-28 00:13:33

103

Views

Non local functor covered by affine opens

Published on 28 Nov 2017 - 0:13

score 788 · Answer 12 · 2026-03-28 00:29:45

788

Views

How to recover a divisor from its valuation (Hartshorne II.6 and ex. II.4.5)

Published on 28 Mar 2026 - 0:29

score 178 · Answer 13 · 2026-03-27 19:52:41

178

Views

Eisenbud Exercise on schemes

Published on 27 Mar 2026 - 19:52

score 191 · Answer 14 · 2017-12-03 18:44:02

191

Views

Affine Morphism - Equivalent Formulation

Published on 03 Dec 2017 - 18:44

score 944 · Answer 15 · 2026-02-23 12:27:42

944

Views

What is the ideal sheaf of a closed subset of a scheme?

Published on 23 Feb 2026 - 12:27

List Question

[Definition included]Morphisms agree in intersections of a cover comes from a morphism $X\to Y$ for scheme $X,Y$

Prove that an open subfunctor of a scheme is itself a scheme

Global proof of deformation correspondence

Is the diagonal morphism of schemes the result of a base change?

Image of quasi-compact scheme in affine scheme contained in $V(I)$ iff image of ideal is contained in nilradical.

Intuition about Schemes over a Fixed Scheme

Relation between $\mathcal{O}_Y\rightarrow f_*\mathcal{O}_{X}$ and $f^{-1}\mathcal{O}_Y\rightarrow \mathcal{O}_X$ being epimorphism/monomorphism.

Does a locally projective scheme over an affine scheme embed into projective space?

Relation of the category of $k$-schemes and the category of $k$-varieties

Are all connected and locally integral affine schemes globally integral?

Non local functor covered by affine opens

How to recover a divisor from its valuation (Hartshorne II.6 and ex. II.4.5)

Eisenbud Exercise on schemes

Affine Morphism - Equivalent Formulation

What is the ideal sheaf of a closed subset of a scheme?

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