Timeline for Pontryagin square of Stiefel-Whitney classes and Pontryagin classes
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| May 17, 2014 at 14:18 | comment | added | Samuel Monnier | Maybe just a word of warning. The formula above is not quite the same as the formula in my answer below, which can be found in the paper of Emery Thomas. Thomas has a footnote mentioning that his formula differs from the one of Wu because Wu has a different definition of the Pontryagin classes. I don't have access to the paper of Wu so I can't check what this means exactly. All I can say is that Thomas's definition of the Pontryagin classes look like the usual one. | |
| May 16, 2014 at 10:09 | vote | accept | Samuel Monnier | ||
| May 16, 2014 at 10:09 | comment | added | Samuel Monnier | Yes, indeed it was a bit unclear to me what hypotheses were necessary for the formula I wrote to be valid. The general formula of Wu solves my problem. Thanks! | |
| May 15, 2014 at 20:14 | history | answered | Johannes Nordström | CC BY-SA 3.0 |