Timeline for The derived category does not satisfy descent - example
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Mar 10, 2023 at 17:05 | vote | accept | Mathmop | ||
| Mar 8, 2023 at 21:09 | comment | added | Dmitri Pavlov | @AchimKrause: Thanks, I rewrote the example and cleaned up the notation. | |
| Mar 8, 2023 at 21:08 | history | edited | Dmitri Pavlov | CC BY-SA 4.0 |
added 116 characters in body
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| Mar 8, 2023 at 20:36 | comment | added | Achim Krause | I don't know think the example works out as claimed (as far as I understood it), if by $k[2]$ you mean $\mathcal{O}[2]$: locally, $\mathcal{O}[2]$ has $\pi_2$, but it's space of endomorphisms is discrete. | |
| Mar 6, 2023 at 22:09 | comment | added | Dmitri Pavlov | @R.vanDobbendeBruyn: For example, take the projective space with coordinates z_i and U_i being given by the condition z_i≠0. | |
| Mar 6, 2023 at 21:34 | comment | added | R. van Dobben de Bruyn | I can't really follow your examples. What is the variety, and what are open sets $U_i$? | |
| Mar 6, 2023 at 19:28 | history | answered | Dmitri Pavlov | CC BY-SA 4.0 |