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Apr 18, 2012 at 15:15 vote accept zygund
Apr 16, 2012 at 11:02 answer added Sergey Melikhov timeline score: 3
Apr 16, 2012 at 6:59 answer added Neil Strickland timeline score: 13
Apr 16, 2012 at 6:16 comment added Ryan Budney I'm not sure I see a coincidence here. Oriented $2$-manifolds are also boundaries. So it seems like you're being quite hopeful in your selection of data in order to get a relation.
Apr 16, 2012 at 5:56 comment added S. Carnahan Have you looked at en.wikipedia.org/wiki/Cobordism ?
Apr 16, 2012 at 5:27 history asked zygund CC BY-SA 3.0