List questions from schemes

Published on 09 Apr 2026 - 1:44

207

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Is there any equivalence between the category of schemes over $\mathbb R$ and the category real manifolds

Published on 26 Feb 2013 - 10:32

2.3k

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Graph of morphism , reduced scheme.

Published on 26 Feb 2013 - 13:59

680

Views

Sheaves on $\mathbb{P}^n \times \mathbb{P}^m$, and a commutation relation for derived functors of global sections and tensor products on it.

Published on 27 Mar 2026 - 3:43

278

Views

Scheme glued out of finitely many spectra of local rings

Published on 27 Feb 2013 - 8:36

228

Views

An intermediate result needed in proving the existence of quotients of a ringed topological space by a group

Published on 10 Apr 2026 - 0:06

560

Views

A proof that every projective morphism is proper?

Published on 11 Apr 2026 - 0:14

124

Views

Connected reduced proper $k$-scheme

Published on 05 Mar 2013 - 12:21

279

Views

Invertible rational functions

Published on 05 Mar 2013 - 19:04

1k

Views

Fiber of morphism of integral schemes

Published on 08 Apr 2026 - 16:29

313

Views

Scheme glued out of spectra of local rings

Published on 13 Mar 2013 - 14:02

818

Views

Does the inclusion from affine schemes into schemes preserve pushouts?

Published on 14 Mar 2013 - 10:46

670

Views

Serre's Theorem for $\operatorname{Proj}$

Published on 07 Apr 2026 - 8:44

1.6k

Views

Comparison between etale and singular cohomology for a singular variety

Published on 10 Apr 2026 - 16:43

768

Views

Morphism between varieties

Published on 19 Mar 2013 - 13:50

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About normalization of scheme

Is there any equivalence between the category of schemes over $\mathbb R$ and the category real manifolds

Graph of morphism , reduced scheme.

Sheaves on $\mathbb{P}^n \times \mathbb{P}^m$, and a commutation relation for derived functors of global sections and tensor products on it.

Scheme glued out of finitely many spectra of local rings

An intermediate result needed in proving the existence of quotients of a ringed topological space by a group

A proof that every projective morphism is proper?

Connected reduced proper $k$-scheme

Invertible rational functions

Fiber of morphism of integral schemes

Scheme glued out of spectra of local rings

Does the inclusion from affine schemes into schemes preserve pushouts?

Serre's Theorem for $\operatorname{Proj}$

Comparison between etale and singular cohomology for a singular variety

Morphism between varieties

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