Timeline for Class group of a 3-dimensional hypersurface singularity
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Jun 18, 2018 at 10:07 | history | edited | Evgeny Shinder | CC BY-SA 4.0 |
"UPDATE" added
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| Jun 18, 2018 at 9:53 | comment | added | Jason Starr | If the codimension of the singular set is $4$ (rather than $3$, as in your case), the standard reference is SGA 2, specifically Grothendieck's proof of the Samuel Conjecture. However, for codimension $3$, the (Weil divisor) class group can be larger than the Picard group, e.g., this happens if $f(z,w)$ equals $zw$. | |
| Jun 18, 2018 at 9:44 | history | edited | Evgeny Shinder | CC BY-SA 4.0 |
Typo fixed
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| Jun 18, 2018 at 9:28 | history | asked | Evgeny Shinder | CC BY-SA 4.0 |