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Jul 10, 2013 at 13:42 history edited Chen CC BY-SA 3.0
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Jul 10, 2013 at 13:39 vote accept Chen
Jul 10, 2013 at 13:35 history edited Chen CC BY-SA 3.0
added 91 characters in body
Jul 10, 2013 at 5:21 comment added Michael Albanese Are you asking why $i_X\eta_n = d\eta_{n-2}$ is true, or why that relationship implies $\eta_n$ is exact outside $M_0$?
Jul 9, 2013 at 21:05 answer added Peter Michor timeline score: 3
Jul 9, 2013 at 17:48 comment added Oldřich Spáčil Could you provide more background on why you believe the result is true?
Jul 9, 2013 at 11:54 history asked Chen CC BY-SA 3.0