List questions from coherent-sheaves

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185

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G-equivariant invertible sheaves on affine curves

Published on 22 Mar 2026 - 20:07

1.5k

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Rank, degree and slope of a general coherent sheaf

Published on 12 Aug 2014 - 13:13

246

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Does the canonical morphism commute with direct image functor?

Published on 25 Mar 2026 - 6:08

1.5k

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Extension of coherent sheaf from open subspace.

Published on 21 Mar 2026 - 1:23

1k

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Comparing two definitions of determinant of coherent sheaves

Published on 02 Oct 2014 - 7:50

790

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Stalks of the sheaf $\mathscr{H}om$?

Published on 21 Oct 2014 - 22:48

113

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Construct natural transformation $u^* R^i f_* \rightarrow R^i g_* v^*$ without assumption of quasi-coherence

Published on 04 Nov 2014 - 7:26

355

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Coherent sheaf on reduced scheme is free on dense open set

Published on 09 Nov 2014 - 19:13

591

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Criterion of flatness for projective morphism

Published on 18 Nov 2014 - 6:54

172

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Question about Tate resolution and cohomology groups of nonzero coherent sheaves.

Published on 21 Nov 2014 - 11:32

102

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Cohomology groups of coherent sheaves for very small and very big twists.

Published on 23 Nov 2014 - 0:13

415

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Relative flat vs flat direct image

Published on 07 Dec 2014 - 21:11

492

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Degree of a torsion-free subsheaf

Published on 25 Mar 2026 - 9:53

41

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More confusion about the definition of smooth morphisms of schemes

Published on 26 Feb 2026 - 13:46

List Question

Question on the definition of sheaves.

G-equivariant invertible sheaves on affine curves

Rank, degree and slope of a general coherent sheaf

Does the canonical morphism commute with direct image functor?

Extension of coherent sheaf from open subspace.

Comparing two definitions of determinant of coherent sheaves

Stalks of the sheaf $\mathscr{H}om$?

Construct natural transformation $u^* R^i f_* \rightarrow R^i g_* v^*$ without assumption of quasi-coherence

Coherent sheaf on reduced scheme is free on dense open set

Criterion of flatness for projective morphism

Question about Tate resolution and cohomology groups of nonzero coherent sheaves.

Cohomology groups of coherent sheaves for very small and very big twists.

Relative flat vs flat direct image

Degree of a torsion-free subsheaf

More confusion about the definition of smooth morphisms of schemes

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