Timeline for Does Serre's condition $S_k$ depend only on codimension $\leq k$ points?
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Oct 29 at 11:18 | answer | added | Jason Starr | timeline score: 4 | |
Oct 27 at 10:52 | comment | added | Jason Starr | No, that is not correct. Consider a union of two linear three-planes intersecting in the origin (in affine six-space). Let $Z$ be the singleton set of the origin. This scheme is not $\text{S}_2$, even though the open complement of $Z$ is $\text{S}_2$. | |
Oct 27 at 1:32 | history | asked | Junpeng Jiao | CC BY-SA 4.0 |