Timeline for How do you intepret "kill a cohomology class" intuitively for attaching an n-cell?
Current License: CC BY-SA 3.0
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| Oct 7, 2012 at 17:56 | comment | added | Xuxu | Thank you for the help. This is exactly what I can understand, but I still what some more ituitive ways to "visualize" through an examine of some easy examples such as the torus or something. Thank you all the same for such a kind help! | |
| Oct 6, 2012 at 14:01 | comment | added | Ryan Reich | When I last took algebraic topology, my professor (Shmuel Weinberger) referred to this phenomenon with the mnemonic "when you kill the dead you create a ghost". Apparently it was memorable! | |
| Oct 6, 2012 at 12:49 | history | answered | Andreas Blass | CC BY-SA 3.0 |