Question

Cokernel of Morphism of Free Sheaves with Infinite Rank

score 88 · Answer 1 · 2022-08-08 19:31:29

88

Views

Cokernel of Morphism of Free Sheaves with Infinite Rank

Published on 08 Aug 2022 - 19:31

score 94 · Answer 2 · 2022-08-27 12:34:05

94

Views

Kernel of sheaf morphism of coherent sheaves is coherent in the general case

Published on 27 Aug 2022 - 12:34

score 35 · Answer 3 · 2022-09-17 14:42:51

35

Views

Analytic sheaves for Cartan's theorem

Published on 17 Sep 2022 - 14:42

score 247 · Answer 4 · 2022-09-18 17:05:32

247

Views

Global sections of pushforwards

Published on 18 Sep 2022 - 17:05

score 97 · Answer 5 · 2022-09-26 09:15:48

97

Views

Is there a direct proof that $\mathcal O(n) \in \text{thick}_{D^b(\mathbb P^1)}\{\mathcal O, \mathcal O(1)\} $ for all $n\in \mathbb Z$

Published on 26 Sep 2022 - 9:15

score 69 · Answer 6 · 2026-03-26 17:32:59

69

Views

Hilbert scheme of $\mathbb{P}^2$ is not a product?

Published on 26 Mar 2026 - 17:32

score 171 · Answer 7 · 2022-11-10 00:41:12

171

Views

When is an extension a vector bundle?

Published on 10 Nov 2022 - 0:41

score 119 · Answer 8 · 2026-03-26 21:27:22

119

Views

How to show saturation map (w.r.t quasicoherent sheaves) isnt always injective / surjective

Published on 26 Mar 2026 - 21:27

score 39 · Answer 9 · 2022-12-08 11:01:16

39

Views

On the cohomology group of kernel of $\mathcal{F} \to \mathcal{F}(d)$

Published on 08 Dec 2022 - 11:01

score 45 · Answer 10 · 2022-12-16 17:59:14

45

Views

Understanding coherent sheaf obtained via sheaf injections of holomorphic vector bundles on $T\mathbb{C}P^1$

Published on 16 Dec 2022 - 17:59

score 50 · Answer 11 · 2022-12-24 09:40:35

50

Views

Is the pushforward of an analytic coherent sheaf still coherent?

Published on 24 Dec 2022 - 9:40

score 310 · Answer 12 · 2022-12-25 21:47:28

310

Views

A question on varieties and morphisms of varieties.

Published on 25 Dec 2022 - 21:47

score 90 · Answer 13 · 2023-01-08 13:21:35

90

Views

Describe $H^0(\mathcal O_X(m-2))\to H^1(I_X(m-2))$ induced by exact short sequence of sheaves

Published on 08 Jan 2023 - 13:21

score 123 · Answer 14 · 2023-01-08 20:58:26

123

Views

Find $H^1(I_X(r))$ for all $r\geqslant0$ where $I_X$ is a four-point set's sheaf of ideals

Published on 08 Jan 2023 - 20:58

score 156 · Answer 15 · 2023-01-26 05:07:59

156

Views

Trace map on Ext groups of coherent sheaves

Published on 26 Jan 2023 - 5:07

List Question

Cokernel of Morphism of Free Sheaves with Infinite Rank

Kernel of sheaf morphism of coherent sheaves is coherent in the general case

Analytic sheaves for Cartan's theorem

Global sections of pushforwards

Is there a direct proof that $\mathcal O(n) \in \text{thick}_{D^b(\mathbb P^1)}\{\mathcal O, \mathcal O(1)\} $ for all $n\in \mathbb Z$

Hilbert scheme of $\mathbb{P}^2$ is not a product?

When is an extension a vector bundle?

How to show saturation map (w.r.t quasicoherent sheaves) isnt always injective / surjective

On the cohomology group of kernel of $\mathcal{F} \to \mathcal{F}(d)$

Understanding coherent sheaf obtained via sheaf injections of holomorphic vector bundles on $T\mathbb{C}P^1$

Is the pushforward of an analytic coherent sheaf still coherent?

A question on varieties and morphisms of varieties.

Describe $H^0(\mathcal O_X(m-2))\to H^1(I_X(m-2))$ induced by exact short sequence of sheaves

Find $H^1(I_X(r))$ for all $r\geqslant0$ where $I_X$ is a four-point set's sheaf of ideals

Trace map on Ext groups of coherent sheaves

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