I added Cohen’s theorem that the Gerstenhaber-algebra operad is the homolpogy of the little disks operad in chain complexes. (need to track down precise reference).
I need to make clearer in various enttries now the distinction between little disks and framed little disks…
]]>“is essentially a Poisson algebra internal to a category of chain complexes”
I think there is some more precise statement which I often forget, like its shift by plus or minus 1 is internal analog of a Poisson algebra. If somebody can nail this down.
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