Question

When do differential operators pull back?

score 485 · Answer 1 · 2026-03-26 17:34:43

485

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When do differential operators pull back?

Published on 26 Mar 2026 - 17:34

score 53 · Answer 2 · 2017-06-22 03:11:38

53

Views

A bijection $\operatorname{Hom}(f^{-1}G,F)= \operatorname{Hom}(G,f_{*}F)$ preserves the induced map on stalks?

Published on 22 Jun 2017 - 3:11

score 1k · Answer 3 · 2017-06-22 15:52:22

1k

Views

Sheaf morphisms are determined by stalks

Published on 22 Jun 2017 - 15:52

score 113 · Answer 4 · 2017-06-23 02:10:10

113

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Sheaf of sections of $S^1$ double covering is not isomorphic to etale sheaf of $S^1$ double covering

Published on 23 Jun 2017 - 2:10

score 217 · Answer 5 · 2026-04-04 12:39:10

217

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Tranisition fucntion of a family of locally free sheaf.

Published on 04 Apr 2026 - 12:39

score 342 · Answer 6 · 2026-03-29 05:12:28

342

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What is the definition of an equivariant connection

Published on 29 Mar 2026 - 5:12

score 454 · Answer 7 · 2026-03-28 06:31:07

454

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Gluing sheaves as direct limit. What is the ordering of this directed system.

Published on 28 Mar 2026 - 6:31

score 615 · Answer 8 · 2017-06-24 21:12:52

615

Views

quotient of subsheaf is a sheaf?

Published on 24 Jun 2017 - 21:12

score 366 · Answer 9 · 2017-06-25 06:18:10

366

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How does the inverse limit glue together sections on a basis?

Published on 25 Jun 2017 - 6:18

score 178 · Answer 10 · 2017-06-25 16:03:07

178

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Stalks of Composition of Morphisms of Presheaves

Published on 25 Jun 2017 - 16:03

score 206 · Answer 11 · 2026-03-26 09:58:01

206

Views

Colimit of spaces of sections of structure sheaf over all Zariski open subsets

Published on 26 Mar 2026 - 9:58

score 244 · Answer 12 · 2017-06-26 11:40:17

244

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Does a presheaf whose étalé space is Hausdorff always satisfy the identity theorem?

Published on 26 Jun 2017 - 11:40

score 444 · Answer 13 · 2017-06-26 22:33:04

444

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Short exact sequence of sheaves induces long exact sequence on sections

Published on 26 Jun 2017 - 22:33

score 55 · Answer 14 · 2026-03-28 03:33:16

$\theta: \mathcal {F}\rightarrow \mathcal {G}$ is an isomorphism iff $\theta_x:\mathcal {F}_x\to\mathcal {G}_x $ is an isomorphism for any $x $.

score 29 · Answer 15 · 2026-03-28 03:34:51

29

Views

Show that $U\rightarrow Im \theta_U $ is not a sheaf.

Published on 28 Mar 2026 - 3:34

List Question

When do differential operators pull back?

A bijection $\operatorname{Hom}(f^{-1}G,F)= \operatorname{Hom}(G,f_{*}F)$ preserves the induced map on stalks?

Sheaf morphisms are determined by stalks

Sheaf of sections of $S^1$ double covering is not isomorphic to etale sheaf of $S^1$ double covering

Tranisition fucntion of a family of locally free sheaf.

What is the definition of an equivariant connection

Gluing sheaves as direct limit. What is the ordering of this directed system.

quotient of subsheaf is a sheaf?

How does the inverse limit glue together sections on a basis?

Stalks of Composition of Morphisms of Presheaves

Colimit of spaces of sections of structure sheaf over all Zariski open subsets

Does a presheaf whose étalé space is Hausdorff always satisfy the identity theorem?

Short exact sequence of sheaves induces long exact sequence on sections

$\theta: \mathcal {F}\rightarrow \mathcal {G}$ is an isomorphism iff $\theta_x:\mathcal {F}_x\to\mathcal {G}_x $ is an isomorphism for any $x $.

Show that $U\rightarrow Im \theta_U $ is not a sheaf.

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