List questions from algebraic-geometry

Published on 25 Mar 2026 - 6:04

252

Views

A question on the proof of Rigidity Lemma in birational geometry

Published on 25 Mar 2026 - 7:48

55

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$V(x^2+y^2+z^2)$ and $V(xz−y^2,yw−z^2,xw−yz)$ are isomorphic.

Published on 14 Apr 2026 - 5:29

30

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Computing a support of a sheaf

Published on 13 Apr 2026 - 12:04

167

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Sheafification of a given presheaf

Published on 11 Apr 2026 - 16:24

84

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Is there a name for this class of 'surfaces'? Have they been studied?

Published on 13 Apr 2026 - 15:06

100

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Relative dimension and linear independence in $\Omega_{X/S} \otimes_{\mathcal O_{X,x}} \kappa(x)$

Published on 19 Mar 2019 - 17:15

113

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Cartier divisor corresponds to Weil divisor on a curve.

Published on 25 Mar 2026 - 6:11

76

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Smooth approximation (under supremum norm) of distance to algebraic set in $\mathbb{R}^n$.

Published on 09 Apr 2026 - 6:18

44

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Why adjunction appear to preserve stalk?

Published on 11 Apr 2026 - 22:49

54

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A function being "finite" over a point on non-normal schemes?

Published on 11 Apr 2026 - 17:27

177

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Global sections of square root line bundle

Published on 25 Mar 2026 - 7:40

49

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Why $I(\mathbb{A}^n)=(0)$?

Published on 07 Apr 2026 - 23:13

55

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Retrieving a function of many complex variables from its manifold of zeros

Published on 25 Mar 2026 - 12:53

26

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Action of Deck transformations after trivialization

Published on 14 Apr 2026 - 1:13

List Question

Blow up of plane curve is Normalization of local ring?

A question on the proof of Rigidity Lemma in birational geometry

$V(x^2+y^2+z^2)$ and $V(xz−y^2,yw−z^2,xw−yz)$ are isomorphic.

Computing a support of a sheaf

Sheafification of a given presheaf

Is there a name for this class of 'surfaces'? Have they been studied?

Relative dimension and linear independence in $\Omega_{X/S} \otimes_{\mathcal O_{X,x}} \kappa(x)$

Cartier divisor corresponds to Weil divisor on a curve.

Smooth approximation (under supremum norm) of distance to algebraic set in $\mathbb{R}^n$.

Why adjunction appear to preserve stalk?

A function being "finite" over a point on non-normal schemes?

Global sections of square root line bundle

Why $I(\mathbb{A}^n)=(0)$?

Retrieving a function of many complex variables from its manifold of zeros

Action of Deck transformations after trivialization

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