Timeline for Is every balanced pre-abelian category abelian?
Current License: CC BY-SA 2.5
6 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 22, 2011 at 15:43 | comment | added | Yann Palu | The reference: "Rump: Almost abelian categories" might interest you. It is proven in particular that if $\mathcal{A}$ is preabelian, then all canonical morphisms $coim(f) \to im(f)$ are mono and epi if and only if the category is semi-abelian (that is kernels and stable under composition and so are cokernels). | |
| Oct 11, 2010 at 9:17 | vote | accept | Martin Brandenburg | ||
| Oct 11, 2010 at 0:11 | answer | added | Leonid Positselski | timeline score: 13 | |
| Oct 10, 2010 at 23:02 | history | edited | Martin Brandenburg | CC BY-SA 2.5 |
added 366 characters in body
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| Oct 10, 2010 at 22:56 | history | asked | Martin Brandenburg | CC BY-SA 2.5 |