Timeline for Grothendieck group generated by classes of invertible sheaves
Current License: CC BY-SA 4.0
11 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 10, 2021 at 22:11 | comment | added | Daniel Litt | Sort of fun to note that if you want to show that line bundles don't span $(K_0)_\mathbb{Q}$, you end up using that the square root of $2$ isn't rational. | |
| Feb 10, 2021 at 22:08 | comment | added | Daniel Litt | @SWS: Thanks, looks good now! | |
| Feb 10, 2021 at 18:25 | history | edited | ssx | CC BY-SA 4.0 |
deleted 18 characters in body
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| Feb 10, 2021 at 18:17 | comment | added | ssx | @DanielLitt Thanks for pointing this out; I think it is a mistake, which should be fixed now. | |
| Feb 10, 2021 at 18:11 | history | edited | ssx | CC BY-SA 4.0 |
fixed error
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| Feb 10, 2021 at 16:07 | comment | added | Daniel Litt | I'm probably missing something silly -- why is the sentence "If the rank 2 bundle 𝒬 were in the subgroup of K0 generated by line bundles, then its K-theory class would therefore have to be 2[det(𝒬)]" true? | |
| Feb 9, 2021 at 2:36 | vote | accept | user45397 | ||
| Feb 9, 2021 at 2:36 | comment | added | user45397 | Thanks, that helps. | |
| Feb 9, 2021 at 2:25 | history | edited | ssx | CC BY-SA 4.0 |
added 993 characters in body
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| Feb 9, 2021 at 1:56 | history | edited | ssx | CC BY-SA 4.0 |
typo
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| Feb 9, 2021 at 1:27 | history | answered | ssx | CC BY-SA 4.0 |