Timeline for injective hull and projective cover of simple modules are indecomposable
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 17, 2020 at 14:04 | vote | accept | mathStudent | ||
| Dec 16, 2020 at 22:28 | answer | added | Alex B. | timeline score: 4 | |
| Dec 16, 2020 at 21:58 | comment | added | Benjamin Steinberg | One way to prove this is for projective covers is using that idempotents lift modulo the radical. Hence a primitive idempotent lifts to a primitive idempotent | |
| Dec 16, 2020 at 21:28 | review | First posts | |||
| Dec 16, 2020 at 21:45 | |||||
| Dec 16, 2020 at 21:23 | history | asked | mathStudent | CC BY-SA 4.0 |