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Mar 2, 2012 at 6:20 vote accept Ron
Feb 29, 2012 at 13:50 comment added Mark Grant In your target homology group, I think $\mathbb{Z}^k$ should be $\mathbb{Z}^n$.
Feb 29, 2012 at 9:01 answer added Johannes Ebert timeline score: 1
Feb 29, 2012 at 6:04 history asked Ron CC BY-SA 3.0