Timeline for Vector bundle for prescribed Stiefel-Whitney classes
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Apr 22, 2014 at 16:48 | comment | added | nsrt | You are asking whether $Z/2$-cohomology as a functor from the homotopy category of spaces to $Z/2$-algebras is full on certain morphism sets. This is wrong in general. First there is more structure on the algebraic invariants (they are algebras over the Steenrod algebra). Even with this modification, this is wrong in general, without assumptions on the spaces, as additional invariants can show. $BO(n)$ is not so special here. | |
| Apr 22, 2014 at 12:29 | answer | added | Mark Grant | timeline score: 14 | |
| Apr 22, 2014 at 8:42 | vote | accept | Oliver Straser | ||
| Apr 22, 2014 at 8:38 | answer | added | Oscar Randal-Williams | timeline score: 15 | |
| Apr 22, 2014 at 7:59 | history | asked | Oliver Straser | CC BY-SA 3.0 |