Timeline for Formula relating the cup product in dimensions n and n+1
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Apr 27, 2016 at 16:19 | vote | accept | Guillaume Brunerie | ||
| Apr 27, 2016 at 16:18 | comment | added | Denis Nardin | @GuillaumeBrunerie Yes, in fact it is basically part of the definition, although the condition you ask about is more related to associativity than commutativity (Note: I use associative and commutative ring spectrum as synonymous to $E_1$ and $E_\infty$-ring spectrum respectively. The usage you can find in old papers is different but hopefully it's disappearing by now) | |
| Apr 27, 2016 at 16:14 | comment | added | Guillaume Brunerie | Thanks! Do you know if it goes both ways? I mean, is what I’m looking for somehow an essential part of the fact that the Eilenberg-MacLane spectrum is a commutative ring spectrum ? (if that means something) | |
| Apr 16, 2016 at 15:04 | history | answered | Denis Nardin | CC BY-SA 3.0 |