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Feb 22, 2010 at 2:03 answer added Paul timeline score: 4
Feb 22, 2010 at 1:47 comment added algori Principal $G$-bundles are classified up to isomorphisms by homotopy classes of mappings to $BG$ or by elements of a non-abelian cohomology set. I've tried to summarize this here: mathoverflow.net/questions/15224/triviality-of-fibre-bundles/…
Feb 22, 2010 at 1:16 history asked john mangual CC BY-SA 2.5