Question

Direct image of structure sheaf of a singular curve

score 137 · Answer 1 · 2026-04-10 21:26:00

137

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Direct image of structure sheaf of a singular curve

Published on 10 Apr 2026 - 21:26

score 119 · Answer 2 · 2026-03-25 04:42:35

119

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On solution to the equation $x_{1}^{2}x_{2}^{2}x_{3}^{2}x_{4}^{2}x_{5}^{2}\left(\sum_{i=1}^{6}a_{i}x_{i}\right)^{2}=1$

Published on 25 Mar 2026 - 4:42

score 71 · Answer 3 · 2026-04-16 03:51:02

71

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Isomorphism of canonical rings and arithmetic genus.

Published on 16 Apr 2026 - 3:51

score 113 · Answer 4 · 2026-04-12 06:27:14

113

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How is this classical group $\textit{compact}$?

Published on 12 Apr 2026 - 6:27

score 847 · Answer 5 · 2026-04-14 21:16:45

847

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A map is injective if it is nonzero at the generic point?

Published on 14 Apr 2026 - 21:16

score 231 · Answer 6 · 2026-04-16 11:02:54

231

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What does vanishing of higher direct images of the structure sheaf tell us?

Published on 16 Apr 2026 - 11:02

score 493 · Answer 7 · 2026-04-12 01:13:02

493

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Lines in projective and affine space

Published on 12 Apr 2026 - 1:13

score 114 · Answer 8 · 2026-04-17 14:50:18

114

Views

Singular maps in into projective spaces

Published on 17 Apr 2026 - 14:50

score 45 · Answer 9 · 2026-04-15 18:46:58

45

Views

A problem in multispace $\Bbb P^{n_1}\times \Bbb P^{n_2}\times ...\times \Bbb P^{n_r}\times \Bbb A^m$

Published on 15 Apr 2026 - 18:46

score 728 · Answer 10 · 2026-04-16 15:57:12

728

Views

Tangent lines throught a point in an algebraic curve

Published on 16 Apr 2026 - 15:57

score 149 · Answer 11 · 2026-04-15 17:29:35

149

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Gluing functions from irreducible components of a reduced curve if they agree on the intersection points

Published on 15 Apr 2026 - 17:29

score 744 · Answer 12 · 2026-04-13 06:34:04

744

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Question about linear algebraic groups split vs isotropic

Published on 13 Apr 2026 - 6:34

score 100 · Answer 13 · 2026-04-12 22:36:09

100

Views

Proving that a prime ideal is principal

Published on 12 Apr 2026 - 22:36

score 101 · Answer 14 · 2026-04-14 18:12:48

101

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The isomorphism of $\mathbb{Z}_{p}[x] /\left(x^{n}-1\right)$ using Hensel's Lemma

Published on 14 Apr 2026 - 18:12

score 184 · Answer 15 · 2026-04-11 20:22:52

184

Views

(Proof verification) $\pi: X\to Y$ birational with $X$ smooth implies $\pi_*O_X=O_Y$.

Published on 11 Apr 2026 - 20:22

List Question

Direct image of structure sheaf of a singular curve

On solution to the equation $x_{1}^{2}x_{2}^{2}x_{3}^{2}x_{4}^{2}x_{5}^{2}\left(\sum_{i=1}^{6}a_{i}x_{i}\right)^{2}=1$

Isomorphism of canonical rings and arithmetic genus.

How is this classical group $\textit{compact}$?

A map is injective if it is nonzero at the generic point?

What does vanishing of higher direct images of the structure sheaf tell us?

Lines in projective and affine space

Singular maps in into projective spaces

A problem in multispace $\Bbb P^{n_1}\times \Bbb P^{n_2}\times ...\times \Bbb P^{n_r}\times \Bbb A^m$

Tangent lines throught a point in an algebraic curve

Gluing functions from irreducible components of a reduced curve if they agree on the intersection points

Question about linear algebraic groups split vs isotropic

Proving that a prime ideal is principal

The isomorphism of $\mathbb{Z}_{p}[x] /\left(x^{n}-1\right)$ using Hensel's Lemma

(Proof verification) $\pi: X\to Y$ birational with $X$ smooth implies $\pi_*O_X=O_Y$.

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