Timeline for Is every commutative group structure underlying at least one (unitary, commutative) ring structure
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jan 19, 2014 at 9:27 | vote | accept | Gérard Lang | ||
| Jan 18, 2014 at 20:53 | answer | added | Sh.M1972 | timeline score: 2 | |
| Jan 18, 2014 at 19:54 | answer | added | Johannes Hahn | timeline score: 16 | |
| Jan 18, 2014 at 19:12 | comment | added | Sasha Anan'in | The inductive limit of the cyclic groups ${\mathbb Z}/p^n$ cannot be the additive group of a unitary ring. There are tons of more sofisticated examples. | |
| Jan 18, 2014 at 19:08 | history | asked | Gérard Lang | CC BY-SA 3.0 |