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15
Math.TechQA.Club
2018-08-25 07:02:57
539
Views
Why is the etale map an open map?
Published on
25 Aug 2018 - 7:02
#general-topology
#homological-algebra
#sheaf-theory
82
Views
Construction of "etale associated-sheaf" in Rotman's
Published on
26 Aug 2018 - 11:17
#homological-algebra
#sheaf-theory
353
Views
Question about sheaf of modules induced by inclusion map of a closed subscheme of an affine scheme
Published on
26 Aug 2018 - 13:06
#algebraic-geometry
#sheaf-theory
739
Views
Restriction of sheaf on a closed subscheme is in general not quasi-coherent?
Published on
27 Aug 2018 - 14:46
#algebraic-geometry
#sheaf-theory
63
Views
Show that $\text{SL}_2(\mathbb{Z}) \backslash \mathbb{H}$ is an algebraic variety
Published on
25 Mar 2026 - 17:26
#algebraic-geometry
#sheaf-theory
#group-actions
110
Views
Is the definition of a sheaf in Serre's paper "Coherent Algebraic Sheaves" equivalent to the standard definition?
Published on
25 Mar 2026 - 4:43
#algebraic-geometry
#sheaf-theory
#sheaf-cohomology
56
Views
Inductive limit of constant sheaves
Published on
30 Aug 2018 - 10:50
#general-topology
#sheaf-theory
483
Views
Left and right adjoint of the presheaf evaluation $\widehat{C} \to \mathbf{Set}$, $F \mapsto F(c)$
Published on
31 Aug 2018 - 8:23
#category-theory
#sheaf-theory
106
Views
What is the filtration in Leray's spectral sequence?
Published on
25 Mar 2026 - 4:40
#sheaf-theory
#sheaf-cohomology
#spectral-sequences
891
Views
Further examples of stalks
Published on
31 Aug 2018 - 22:17
#algebraic-geometry
#category-theory
#sheaf-theory
258
Views
Left adjoint of evaluation functor
Published on
04 Sep 2018 - 9:04
#category-theory
#homotopy-theory
#sheaf-theory
111
Views
Presheaves saturated by monomorphisms
Published on
04 Sep 2018 - 15:52
#algebraic-topology
#category-theory
#homotopy-theory
#sheaf-theory
27
Views
Hereditary topological axioms: from X to its etale space
Published on
05 Sep 2018 - 8:58
#sheaf-theory
63
Views
looking for flabby sheaf resolutions
Published on
23 Mar 2026 - 0:12
#abstract-algebra
#category-theory
#homology-cohomology
#sheaf-theory
#d-modules
293
Views
Vanishing locus of global section of invertible sheaf has codimension one
Published on
25 Mar 2026 - 6:12
#algebraic-geometry
#reference-request
#sheaf-theory
#line-bundles
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