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For questions about sheaves on a topological space.

9 votes
Accepted

Simplifying the definition of a geometric context using sieves?

First of all, the "extensive list of axioms" is largely a list of definitions (of rather natural terminology). Anyway, he seems to be just getting at the issue of the use of fiber squares in arguments …
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17 votes
Accepted

Equivalence of ordered and unordered cech cohomology.

I wrote it up for my algebraic geometry course as a 2-page handout, inspired by EGA $0_{\rm{III}}$, 11.8.7 (which isn't to say this is a canonical reference; just some written reference...).
BCnrd's user avatar
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