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15
Math.TechQA.Club
2024-01-22 11:22:54
109
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Question related to Etale morphism
Published on
22 Jan 2024 - 11:22
#algebraic-geometry
#schemes
#affine-schemes
73
Views
Algebraic Torus is a group scheme
Published on
26 Mar 2026 - 1:14
#algebraic-geometry
#schemes
#algebraic-groups
#affine-schemes
#group-schemes
107
Views
Proof criticize: rank $n$ vector bundle on $\mathbb{A}^1_k$ is trivial
Published on
26 Jan 2024 - 3:17
#algebraic-geometry
#sheaf-theory
#vector-bundles
#schemes
#affine-schemes
78
Views
rank of an $\mathcal{O}_X$-module being constant
Published on
25 Mar 2026 - 9:37
#algebraic-geometry
#sheaf-theory
#schemes
#affine-schemes
#algebraic-k-theory
68
Views
Finding the image of a morphism between affine schemes
Published on
18 Feb 2024 - 22:04
#algebraic-geometry
#schemes
#algebraic-curves
#affine-schemes
50
Views
Finding out the induced map via factoring through canonical map $A \to S^{-1}A$ of localization
Published on
20 Feb 2024 - 8:33
#commutative-algebra
#sheaf-theory
#affine-schemes
102
Views
Is there a "correct" $k$ scheme structure to put on $\coprod_{i=1}^n \operatorname{Spec}(k)$?
Published on
26 Mar 2026 - 1:11
#algebraic-geometry
#schemes
#affine-schemes
#group-schemes
34
Views
Affine group schemes
Published on
26 Mar 2026 - 2:53
#algebraic-groups
#affine-schemes
#hopf-algebras
#group-schemes
74
Views
Proof critique - Glueing local isomorphism
Published on
11 Mar 2024 - 16:04
#algebraic-geometry
#sheaf-theory
#schemes
#affine-schemes
40
Views
Sections are determined by their germs at associated points
Published on
26 Mar 2026 - 1:00
#algebraic-geometry
#sheaf-theory
#schemes
#affine-schemes
#coherent-sheaves
330
Views
A rigorous characterization for a ringed spaces to be isomorphic to an affine scheme.
Published on
23 Feb 2026 - 6:58
#algebraic-geometry
#schemes
#affine-schemes
#ringed-spaces
3.7k
Views
What's the "real" reason a finite map has finite fibers?
Published on
17 Jan 2015 - 18:27
#algebraic-geometry
#commutative-algebra
#soft-question
#affine-schemes
462
Views
Property of pullback of quasi-coherent sheaves
Published on
25 Mar 2026 - 23:38
#tensor-products
#coherent-sheaves
#affine-schemes
#quasicoherent-sheaves
#localization
101
Views
Closed sets flat morphism
Published on
26 Mar 2026 - 17:34
#algebraic-geometry
#schemes
#affine-schemes
#flatness
67
Views
Definition of Formally Smooth from Stack Project
Published on
27 Jan 2015 - 14:25
#category-theory
#schemes
#affine-schemes
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