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#cohomology — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #cohomology, aggregated by home.social.

  1. Well, actually, it’s a bit annoying that \(\delta\) returns lots of n-1 simplices for any n-simplex: it is a multifunction. If we instead map the other way around, from the boundary to the inside, we simply get a function! And that’s called cohomology, and is what the cool kids do all the time!

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    #homology #cohomology