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K.J. Moi
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Let <span class=$F =\mathbb{R}$ or $F=\mathbb{C}$" />. There is a close connection between the algebraic K-groups <span class=$K\sb i(F)$" /> and the topological K-groups <span class=$K^{-i}\sb F(P)$" />, where P http://latex.mathoverflow.net/png?P denotes the one-point space. I'm trying to learn this stuff at the moment so I hope someone can fill in the details here (post is community wiki), but I believe the statement is that if you take 2-completions the groups will be isomorphic.

K.J. Moi
  • 998
  • 6
  • 14