Timeline for Contravariant right exact functor?
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
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| Mar 10, 2012 at 7:52 | answer | added | Leonid Positselski | timeline score: 3 | |
| Mar 9, 2012 at 22:05 | answer | added | Martin Brandenburg | timeline score: 1 | |
| Mar 9, 2012 at 21:55 | history | edited | Martin Brandenburg |
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| Mar 9, 2012 at 21:54 | comment | added | Martin Brandenburg | @Gjujin: I don't agree with the premise of your question that there are few such functors. @Will: When $X$ has injective dimension $\leq d$, then $\mathrm{Ext}^d(-,X)$ is an example. | |
| Mar 9, 2012 at 21:30 | comment | added | Will Sawin | If you take a category with finite projective dimension (or possibly injective?) $d$ then $Ext^d(_,X)$ should satisfy this condition. | |
| Mar 9, 2012 at 21:18 | comment | added | Qiaochu Yuan | Can't you just take a covariant left exact functor and then take the opposite of the target category? | |
| Mar 9, 2012 at 21:13 | history | asked | user15561 | CC BY-SA 3.0 |