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15
Math.TechQA.Club
2026-04-13 06:49:51
542
Views
Why is the etale map an open map?
Published on
13 Apr 2026 - 6:49
#general-topology
#homological-algebra
#sheaf-theory
85
Views
Construction of "etale associated-sheaf" in Rotman's
Published on
15 Apr 2026 - 8:37
#homological-algebra
#sheaf-theory
356
Views
Question about sheaf of modules induced by inclusion map of a closed subscheme of an affine scheme
Published on
10 Apr 2026 - 20:13
#algebraic-geometry
#sheaf-theory
742
Views
Restriction of sheaf on a closed subscheme is in general not quasi-coherent?
Published on
13 Apr 2026 - 22:41
#algebraic-geometry
#sheaf-theory
65
Views
Show that $\text{SL}_2(\mathbb{Z}) \backslash \mathbb{H}$ is an algebraic variety
Published on
13 Apr 2026 - 0:57
#algebraic-geometry
#sheaf-theory
#group-actions
113
Views
Is the definition of a sheaf in Serre's paper "Coherent Algebraic Sheaves" equivalent to the standard definition?
Published on
11 May 2026 - 0:57
#algebraic-geometry
#sheaf-theory
#sheaf-cohomology
59
Views
Inductive limit of constant sheaves
Published on
14 Apr 2026 - 2:22
#general-topology
#sheaf-theory
486
Views
Left and right adjoint of the presheaf evaluation $\widehat{C} \to \mathbf{Set}$, $F \mapsto F(c)$
Published on
15 Apr 2026 - 19:12
#category-theory
#sheaf-theory
109
Views
What is the filtration in Leray's spectral sequence?
Published on
10 May 2026 - 12:53
#sheaf-theory
#sheaf-cohomology
#spectral-sequences
894
Views
Further examples of stalks
Published on
12 Apr 2026 - 5:43
#algebraic-geometry
#category-theory
#sheaf-theory
261
Views
Left adjoint of evaluation functor
Published on
14 Apr 2026 - 6:49
#category-theory
#homotopy-theory
#sheaf-theory
114
Views
Presheaves saturated by monomorphisms
Published on
13 Apr 2026 - 15:47
#algebraic-topology
#category-theory
#homotopy-theory
#sheaf-theory
30
Views
Hereditary topological axioms: from X to its etale space
Published on
09 Apr 2026 - 23:30
#sheaf-theory
70
Views
looking for flabby sheaf resolutions
Published on
10 May 2026 - 22:05
#abstract-algebra
#category-theory
#homology-cohomology
#sheaf-theory
#d-modules
298
Views
Vanishing locus of global section of invertible sheaf has codimension one
Published on
10 May 2026 - 15:56
#algebraic-geometry
#reference-request
#sheaf-theory
#line-bundles
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