Timeline for Integral versus real (universal) characteristic classes
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 17, 2013 at 9:52 | answer | added | Achim Krause | timeline score: 6 | |
| Dec 17, 2013 at 8:27 | vote | accept | Christoph Wockel | ||
| Dec 17, 2013 at 7:34 | answer | added | Mark Grant | timeline score: 11 | |
| Dec 16, 2013 at 22:37 | comment | added | Mark Grant | You can use the naturality of the Universal Coefficient sequence for cohomology (Hatcher, Algebraic Topology, Theorem 3.2) to conclude that your map is injective whenever $H_{n-1}$ is torsion free. | |
| Dec 16, 2013 at 22:24 | history | asked | Christoph Wockel | CC BY-SA 3.0 |