Timeline for What can we say about the map $\pi^{}\pi_{}$ for $\pi:X\rightarrow X/G$?

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Jan 7, 2013 at 20:13	history	answered	Sasha	CC BY-SA 3.0

Timeline for What can we say about the map $\pi^{*}\pi_{*}$ for $\pi:X\rightarrow X/G$?