Timeline for Moving subvarieties to avoid a certain point
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| May 4, 2022 at 7:45 | comment | added | Evgeny Shinder | In the case when $X$ is singular, we do not expect to move divisors off singular points, e.g. in a quadric cone $xy = z^2$ lines making up the cone all pass through the singular point $0$ and there is no way to move them off it -- in the sense of linear equivalence, and probably in the sense you are asking as well. | |
| May 4, 2022 at 3:24 | history | edited | user127776 | CC BY-SA 4.0 |
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| May 3, 2022 at 13:18 | comment | added | abx | No in general: if you blow up a point in a (smooth) surface, the exceptional curve cannot move. | |
| May 3, 2022 at 13:04 | history | edited | user127776 | CC BY-SA 4.0 |
added 552 characters in body
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| May 3, 2022 at 13:00 | history | undeleted | user127776 | ||
| May 3, 2022 at 3:26 | history | deleted | user127776 | via Vote | |
| May 3, 2022 at 2:52 | history | asked | user127776 | CC BY-SA 4.0 |