Timeline for When is the Yoneda product graded commutative?
Current License: CC BY-SA 2.5
3 events
| when toggle format | what | by | license | comment | |
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| Jul 29, 2010 at 21:10 | comment | added | Mariano Suárez-Álvarez | You need some (finiteness...) hypothesis on $R$ for his to be true: take $k=\mathbb C$, $R=\mathbb C(t)$, and $A$ the $1$-dimensional $R$-vector space. | |
| Jul 28, 2010 at 19:56 | comment | added | Victor Protsak | A simple module is cyclic (1-generated). | |
| Jul 28, 2010 at 18:30 | history | answered | Graham Denham | CC BY-SA 2.5 |