Timeline for group actions preserve the cup product
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 18, 2016 at 2:09 | comment | added | YCor | You're both right (it's natural in the setting of oriented manifolds, rather than besides naturality...) | |
| Oct 17, 2016 at 22:32 | review | Close votes | |||
| Oct 18, 2016 at 8:26 | |||||
| Oct 17, 2016 at 22:17 | comment | added | HeinrichD | Besides naturality, we also need that $g^*[X]=[X]$ for $g \in G$, which is because $G$ acts by orientation-preserving automorphisms. | |
| Oct 17, 2016 at 22:16 | comment | added | Alex Degtyarev | Because all products are natural? | |
| Oct 17, 2016 at 22:13 | history | asked | Stanley Chang | CC BY-SA 3.0 |