List questions from coherent-sheaves

Published on 28 May 2020 - 15:05

124

Views

When two Algebraic vector bundles on a Noetherian quasi-affine scheme are equal in $K_0$ of the scheme

Published on 31 May 2020 - 13:52

49

Views

Representative in $Dcoh(X)$

Published on 03 Jun 2020 - 16:06

384

Views

Question about the proof of "direct image sheaf of coherent sheaf is coherent"

Published on 06 Jun 2020 - 11:34

131

Views

Trying to understand the statement of Nakayama's lemma for coherent modules in Mumford' red book

Published on 14 Jun 2020 - 9:39

102

Views

$M_x$ is free $\Rightarrow \widetilde{M}$ is locally free at $x$

Published on 15 Jun 2020 - 22:27

524

Views

Why is the dualizing sheaf $\omega_X$ locally free of rank 1 at generic points for a scheme $X$ satisfying $G_0$ and $S_2$?

Published on 16 Jun 2020 - 15:10

131

Views

An exact sequence for coherent sheaves on $\mathbf{P}^n_k$

Published on 25 Mar 2026 - 9:25

477

Views

Serre FAC book by McLennan

Published on 13 Jul 2020 - 4:43

132

Views

Image of morphism of sheaves

Published on 16 Jul 2020 - 2:06

70

Views

Counterexamples in the theory of coherent sheaves

Published on 20 Jul 2020 - 16:18

79

Views

On Hom and Tensor evaluation of Coherent sheaves , two of which are Algebraic vector bundles

Published on 25 Mar 2026 - 8:10

558

Views

How can I pick out the symmetric and antisymmetric parts of a tensor product of line bundles over projective space?

Published on 18 Aug 2016 - 1:05

58

Views

Quick question: SES of refexive sheaves on surface

Published on 13 Sep 2016 - 21:36

159

Views

Why is $f^!\mathcal{G}$ a quasi-coherent $\mathcal{O}_X$-module?

Published on 19 Sep 2016 - 12:52

List Question

A bundle pull-back along itself

When two Algebraic vector bundles on a Noetherian quasi-affine scheme are equal in $K_0$ of the scheme

Representative in $Dcoh(X)$

Question about the proof of "direct image sheaf of coherent sheaf is coherent"

Trying to understand the statement of Nakayama's lemma for coherent modules in Mumford' red book

$M_x$ is free $\Rightarrow \widetilde{M}$ is locally free at $x$

Why is the dualizing sheaf $\omega_X$ locally free of rank 1 at generic points for a scheme $X$ satisfying $G_0$ and $S_2$?

An exact sequence for coherent sheaves on $\mathbf{P}^n_k$

Serre FAC book by McLennan

Image of morphism of sheaves

Counterexamples in the theory of coherent sheaves

On Hom and Tensor evaluation of Coherent sheaves , two of which are Algebraic vector bundles

How can I pick out the symmetric and antisymmetric parts of a tensor product of line bundles over projective space?

Quick question: SES of refexive sheaves on surface

Why is $f^!\mathcal{G}$ a quasi-coherent $\mathcal{O}_X$-module?

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