Timeline for Weighted blowup of a Cohen-Macaulay ring along a regular sequence is Cohen-Macaulay?
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
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| Sep 4, 2020 at 19:40 | comment | added | cgodfrey | Ah, good point. I'm not sure (edited accordingly). Sorry I can't elaborate further off the top of my head, since I don't have much working experience with weighted-blowups. | |
| Sep 4, 2020 at 19:36 | history | edited | cgodfrey | CC BY-SA 4.0 |
not positice E is Cartier in the weighted case
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| Sep 3, 2020 at 9:03 | comment | added | One More Question | Thank you for your response. I know the case when all the weights are $1$; some other references for it are Lemma A.6.1 in Fulton's Intersection theory or, for a stronger statement, 1.3--1.4 in expose VII of SGA6. Could you elaborate on the argument in the general weighted case? For one thing, is $E$ still a Cartier divisor then? | |
| Sep 1, 2020 at 21:26 | history | answered | cgodfrey | CC BY-SA 4.0 |