0
votes
0answers
85 views

Equivariant and compactly supported version of a theorem of Leray

In "Théorie des Faisceaux", Godement states the following theorem due to Leray (Theorem 5.2.5, page 209). Let ${\mathcal M}=(M_i )_{i\in I}$ be a locally finite closed covering of a topological ...
1
vote
2answers
238 views

Leray spectral sequence of the inclusion of an open subvariety

Let $X$ be a smooth variety over a field $k \subset \mathbb{C}$ and $Z$ a smooth subvariety. Let $U=X-Z$. I'm trying to understand what information do the Leray spectral sequences attached to the ...