Timeline for Does the Čech cohomology always yield long exact sequences from short ones?
Current License: CC BY-SA 3.0
9 events
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| Apr 13, 2017 at 12:58 | history | edited | CommunityBot |
replaced http://mathoverflow.net/ with https://mathoverflow.net/
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| Feb 26, 2013 at 8:29 | comment | added | Ketil Tveiten | The nlab page for derived functors nlab.mathforge.org/nlab/show/derived+functor talks about Kan extensions, though I'm not competent enough to decide if that helps you. | |
| Feb 26, 2013 at 8:17 | vote | accept | HeWhoHungers | ||
| Feb 26, 2013 at 1:47 | comment | added | Donu Arapura | I added some details. (Don't know much about Kan extensions, sorry.) | |
| Feb 26, 2013 at 1:45 | history | edited | Donu Arapura | CC BY-SA 3.0 |
added 966 characters in body; deleted 5 characters in body
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| Feb 26, 2013 at 0:36 | comment | added | Andrej Bauer | Thanks! And since I am asking for favors, I vaguely remember that derived functors are Kan extensions, so cohomology should be a Kan extension. Where can I read about that? (Sorry, this is off topic, but it does not warrant a whole new question.) | |
| Feb 25, 2013 at 22:02 | comment | added | Donu Arapura | Sure, I can try to do this in few days, when I finish some other things. | |
| Feb 25, 2013 at 21:49 | comment | added | Andrej Bauer | If someone can flesh this out, it would be really helpful, since it is exactly at this point that help was needed earlier today in my office. | |
| Feb 25, 2013 at 20:59 | history | answered | Donu Arapura | CC BY-SA 3.0 |