Monday, 14 May 2007

sheaf theory - group cohomology and cohomology of classifying space

Let G be a discrete group, and BG is the classifying space.
It is well-known that the group cohomology of G-module M, is the same as the cohomology on BG with coefficient in tildeM, which is the associated sheaf of M.



Can someone explain how these two cohomologies are related?

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