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6 votes
1 answer
386 views

Elementary proof of the exactness of Čech complex associated to a hypercovering ("Illusie's Conjecture")

Let $\mathcal{E}$ be a sheaf of abelian groups on a topological space (or a site). For an open covering $\mathfrak{U} = (U_i)_i$, it is well known that the augmented Čech complex $0 \to \mathcal{E} \...
Ingo Blechschmidt's user avatar
5 votes
0 answers
380 views

Does the de Rham complex induce a functorial soft resolution of the category of cochain complexes of sheaves of vector spaces on a smooth manifold?

I apologize in advance if this is pretty straightforward; I'm a differential geometer and physicist by training so my homological algebra and homotopy theory are a bit weak. Question: Let $M$ be a ...
ಠ_ಠ's user avatar
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