List questions from sheaf-theory

Published on 28 May 2014 - 16:42

493

Views

Connected scheme but not quasicompact

Published on 31 May 2014 - 13:20

198

Views

Stalk is a local object of a sheaf

Published on 01 Jun 2014 - 11:28

45

Views

Local systems on algebraic groups

Published on 26 Mar 2026 - 14:26

326

Views

An equivalence of categories of presheaves.

Published on 03 Jun 2014 - 12:17

188

Views

Cover of a sheaf

Published on 06 Jun 2014 - 13:42

57

Views

Isomorphism of sheaves between $\mathcal{O}$ and $\Omega$

Published on 25 Mar 2026 - 11:26

303

Views

Exact sequence of sheaves of holomorphic functions

Published on 10 Jun 2014 - 4:18

670

Views

Learning the topology needed for topos theory.

Published on 28 Mar 2026 - 5:00

186

Views

Comparison between Eilenberg-Steenrod excision and Brown representability excisive

Published on 17 Jun 2014 - 2:25

161

Views

Prove: $U \mapsto \mathrm{Hom}(U, Y)$

Published on 23 Feb 2026 - 3:23

1.4k

Views

What is a Presheaf (intuitively) and help with the technical machinery.

Published on 19 Jun 2014 - 20:11

337

Views

Soft sheaves adapted to $f_!$

Published on 21 Jun 2014 - 10:57

563

Views

Abstract proof that internal hom presheaf is a sheaf

Published on 25 Mar 2026 - 9:26

1.4k

Views

Hartshorne Theorem 8.17

Published on 24 Jun 2014 - 21:15

List Question

History of terminology: sheaves, presheaves, etc.

Connected scheme but not quasicompact

Stalk is a local object of a sheaf

Local systems on algebraic groups

An equivalence of categories of presheaves.

Cover of a sheaf

Isomorphism of sheaves between $\mathcal{O}$ and $\Omega$

Exact sequence of sheaves of holomorphic functions

Learning the topology needed for topos theory.

Comparison between Eilenberg-Steenrod excision and Brown representability excisive

Prove: $U \mapsto \mathrm{Hom}(U, Y)$

What is a Presheaf (intuitively) and help with the technical machinery.

Soft sheaves adapted to $f_!$

Abstract proof that internal hom presheaf is a sheaf

Hartshorne Theorem 8.17

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