List questions from etale-cohomology

Published on 21 Feb 2019 - 16:19

65

Views

$H^0_c (X_{et}, \mathscr{F}) = 0$ for any affine smooth curve $X$

Published on 28 Feb 2019 - 7:57

176

Views

Is there a fiber bundle/espace-etale interpretation of sheaves on a Grothendieck site

Published on 25 Mar 2026 - 6:13

1.4k

Views

Kummer sequence etale topology

Published on 25 Mar 2026 - 6:09

324

Views

The splitting of Galois representations

Published on 25 Mar 2026 - 1:16

987

Views

Constant sheaves on the étale site of a scheme

Published on 25 Mar 2026 - 9:27

409

Views

All Etale morphisms $X\to\Bbb A^1$

Published on 27 Apr 2019 - 1:47

539

Views

Sufficient conditions for vanishing module of Kähler differentials

Published on 23 Feb 2026 - 2:57

148

Views

Properties that "lift up" along etale maps

Published on 30 Apr 2019 - 12:49

126

Views

Making $H^(\mathbf{P}^\infty)=\lim H^(\mathbf{P}^n)=k[t]$ precise using stacks

Published on 17 Mar 2026 - 8:28

39

Views

The pullback functor between categories of etale sheaf on an affine space satisfies solution set criterion

Published on 25 Mar 2026 - 9:49

292

Views

A strictly henselian ring is final in the opposite category of etale neighborhood of its closed point.

Published on 23 May 2019 - 16:06

226

Views

An isomorphism of higher direct images with proper support

Published on 28 May 2019 - 9:27

155

Views

Intuition for the sheaf $\mathbb{Z}/n\mathbb{Z}(d)$ and the operations with it.

Published on 13 Jun 2019 - 17:37

160

Views

How to construct base change of cohomology map $H^n(Y,\mathcal{F})\to H^n(X,f^*\mathcal{F})$?

Published on 25 Mar 2026 - 12:41

List Question

of finite presentation morphism

$H^0_c (X_{et}, \mathscr{F}) = 0$ for any affine smooth curve $X$

Is there a fiber bundle/espace-etale interpretation of sheaves on a Grothendieck site

Kummer sequence etale topology

The splitting of Galois representations

Constant sheaves on the étale site of a scheme

All Etale morphisms $X\to\Bbb A^1$

Sufficient conditions for vanishing module of Kähler differentials

Properties that "lift up" along etale maps

Making $H^(\mathbf{P}^\infty)=\lim H^(\mathbf{P}^n)=k[t]$ precise using stacks

The pullback functor between categories of etale sheaf on an affine space satisfies solution set criterion

A strictly henselian ring is final in the opposite category of etale neighborhood of its closed point.

An isomorphism of higher direct images with proper support

Intuition for the sheaf $\mathbb{Z}/n\mathbb{Z}(d)$ and the operations with it.

How to construct base change of cohomology map $H^n(Y,\mathcal{F})\to H^n(X,f^*\mathcal{F})$?

Trending Questions

Popular # Hahtags

Popular Questions