Timeline for Purity and skyscraper sheaves
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jul 10, 2019 at 18:19 | comment | added | Jack Huizenga | That's if you want to get torsion-free sheaves. It is totally fine to study e.g. sheaves of pure dimension 1 on a surface, but they will all be torsion sheaves supported on curves. | |
| Jul 10, 2019 at 9:36 | comment | added | user137162 | Oh, I see. So in the phrase "$\mathcal{F}$ is pure of dimension $d$" where $\mathcal{F}$ is a sheaf on an $n$-equidimensional scheme $X$ one must take $n=d$. Thank you. | |
| Jul 10, 2019 at 5:37 | history | edited | Jack Huizenga | CC BY-SA 4.0 |
added 94 characters in body
|
| Jul 10, 2019 at 5:18 | history | answered | Jack Huizenga | CC BY-SA 4.0 |