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Timeline for Intuition behind Alexander duality

Current License: CC BY-SA 3.0

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Oct 16, 2011 at 0:52 history edited Greg Kuperberg CC BY-SA 3.0
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Oct 15, 2011 at 22:38 comment added John Pardon Is there a standard reference for the equivalence of these two versions of cech cohomology?
Oct 13, 2010 at 14:04 comment added Greg Kuperberg What I meant is, the old-fashioned definition is that if you have an inverse limit of nice spaces, you can define the Cech cohomology as the induced direct limit of cohomology groups. The new-fashioned definition is also a direct limit, but using open covers instead.
Oct 13, 2010 at 13:50 comment added Mariano Suárez-Álvarez What's the new-fashioned definition of Čech cohomology?
Oct 13, 2010 at 9:15 history answered Greg Kuperberg CC BY-SA 2.5