Timeline for When is a functor a right derived functor?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Jul 20, 2016 at 6:15 | comment | added | mabli | In fact, this has annoyed me for quite a bit longer than a few weeks already. Seeing the answer of @Jacob Lurie it seems you are right in your assessment that this is an artefact of the shortcomings of triangulated categories which are resolved in a better context... | |
| Jul 19, 2016 at 19:13 | history | edited | Jeremy Rickard | CC BY-SA 3.0 |
added comments on revised question
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| Jul 19, 2016 at 10:01 | comment | added | mabli | Yes indeed, very good point. It reminds me that I forgot to add an assumption on $F$, namely that $F$ is left exact in the sense that $F(D^{\geq 0}(\mathcal{A})) \subseteq D^{\geq 0}(\mathcal{B}). I edited the question accordingly... | |
| Jul 18, 2016 at 15:33 | history | answered | Jeremy Rickard | CC BY-SA 3.0 |