Timeline for Is it true that simple projective modules are injective?
Current License: CC BY-SA 3.0
9 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 9, 2013 at 17:38 | answer | added | Floresza | timeline score: 4 | |
| Sep 28, 2013 at 21:06 | comment | added | Fred Rohrer | @Mariano: I see only one question. (Well, if we also look at the title then I actually see two questions that are the same.) | |
| Sep 28, 2013 at 21:06 | answer | added | Mariano Suárez-Álvarez | timeline score: 14 | |
| Sep 28, 2013 at 21:02 | comment | added | Mariano Suárez-Álvarez | @FredRohrer, there are two questions in the question and your comment anwers «No»... to which of the two? :-) | |
| Sep 28, 2013 at 20:22 | comment | added | Fred Rohrer | @Mariano: An $R$-module $M$ is called singular if $R$ is an essential extension of $(0:_Rx)$ for every $x\in M$. | |
| Sep 28, 2013 at 20:18 | comment | added | Mariano Suárez-Álvarez | what is a singular module? | |
| Sep 28, 2013 at 20:10 | answer | added | Michael Barr | timeline score: 0 | |
| Sep 28, 2013 at 20:00 | comment | added | Fred Rohrer | No, cf. T.Y.Lam, Lectures on modules and rings, Springer GTM 189, Exercise I.3.3. | |
| Sep 28, 2013 at 19:46 | history | asked | user39125 | CC BY-SA 3.0 |