Question

$\ker \varphi_p \subset (\ker \varphi)_p$ where $(\cdot)_p$ is taking the stalk of sheaves at the point $p$ (Diagram inside!).

score 128 · Answer 1 · 2026-03-25 15:52:59

128

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$\ker \varphi_p \subset (\ker \varphi)_p$ where $(\cdot)_p$ is taking the stalk of sheaves at the point $p$ (Diagram inside!).

Published on 25 Mar 2026 - 15:52

score 1.1k · Answer 2 · 2026-03-28 02:10:33

1.1k

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Is the tensor product of two projective sheaves projective?

Published on 28 Mar 2026 - 2:10

score 123 · Answer 3 · 2026-03-26 20:44:04

123

Views

Cohomology of doubly pinched torus via spectral sequences

Published on 26 Mar 2026 - 20:44

score 204 · Answer 4 · 2021-01-02 18:14:24

204

Views

Sheafification of representable presheaves

Published on 02 Jan 2021 - 18:14

score 54 · Answer 5 · 2021-01-03 13:59:21

54

Views

Equivalent condition for a presheaf to satisfy the gluing axiom using the etale space

Published on 03 Jan 2021 - 13:59

score 160 · Answer 6 · 2026-03-27 01:44:54

160

Views

Proving that intersection number of divisor is 0

Published on 27 Mar 2026 - 1:44

score 255 · Answer 7 · 2026-03-25 11:10:02

255

Views

Cech nerve and descent data

Published on 25 Mar 2026 - 11:10

score 27 · Answer 8 · 2026-02-23 12:26:36

Do we get a section on a ringed space $\mathcal{A}$ by mapping each element $x$ to the multiplicative unit element $1_x$ of $\mathcal{A}_x$?

score 89 · Answer 9 · 2026-03-25 09:38:47

89

Views

Relation between different definitions of the cotangent space of a smooth manifold

Published on 25 Mar 2026 - 9:38

score 328 · Answer 10 · 2026-03-28 11:54:13

328

Views

Sheaf cohomology of the structure sheaf of the grasmannian G(2,7)

Published on 28 Mar 2026 - 11:54

score 135 · Answer 11 · 2026-03-27 16:09:15

135

Views

Calabi-Yau conditions for a threefold in the Grassmannian $Gr(2,7)$

Published on 27 Mar 2026 - 16:09

score 754 · Answer 12 · 2026-03-25 17:18:38

754

Views

Regular rational functions over real projective lines and projective spaces.

Published on 25 Mar 2026 - 17:18

score 64 · Answer 13 · 2021-01-19 20:39:38

64

Views

Are inverse images of separated presheaves separated?

Published on 19 Jan 2021 - 20:39

score 160 · Answer 14 · 2021-01-22 12:13:39

160

Views

Hartshorne Example 5.2.2

Published on 22 Jan 2021 - 12:13

score 924 · Answer 15 · 2026-04-07 02:07:15

924

Views

Rank of coherent sheaf on complex manifolds

Published on 07 Apr 2026 - 2:07

List Question

$\ker \varphi_p \subset (\ker \varphi)_p$ where $(\cdot)_p$ is taking the stalk of sheaves at the point $p$ (Diagram inside!).

Is the tensor product of two projective sheaves projective?

Cohomology of doubly pinched torus via spectral sequences

Sheafification of representable presheaves

Equivalent condition for a presheaf to satisfy the gluing axiom using the etale space

Proving that intersection number of divisor is 0

Cech nerve and descent data

Do we get a section on a ringed space $\mathcal{A}$ by mapping each element $x$ to the multiplicative unit element $1_x$ of $\mathcal{A}_x$?

Relation between different definitions of the cotangent space of a smooth manifold

Sheaf cohomology of the structure sheaf of the grasmannian G(2,7)

Calabi-Yau conditions for a threefold in the Grassmannian $Gr(2,7)$

Regular rational functions over real projective lines and projective spaces.

Are inverse images of separated presheaves separated?

Hartshorne Example 5.2.2

Rank of coherent sheaf on complex manifolds

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