Timeline for Is the theta characteristic attached to an etale double cover of a plane quintic arising from a cubic threefold even in characteristic two?
Current License: CC BY-SA 4.0
8 events
| when toggle format | what | by | license | comment | |
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| Aug 5, 2022 at 11:48 | comment | added | TCiur | Thank you, this is perfect! | |
| Aug 5, 2022 at 11:46 | vote | accept | TCiur | ||
| Aug 4, 2022 at 14:43 | comment | added | Will Sawin | @TCiur Equation (2.5) of people.maths.bris.ac.uk/~jb12407/ANTS-XV/papers/… (counting points on smooth plane quartics by Edgar Costa, David Harvey, and Andrew v. Sutherland), noting that the differential they call $\omega_{k\ell}$ corresponds to the monomial $x^{k-1} y^{\ell-1} z^{ \deg F - k - \ell -1 }$ as a global section of $H^0(\mathbb P^2, \deg F-2)$, and the Verschiebung is another name for the Cartier operator on differential forms. | |
| Aug 4, 2022 at 14:02 | comment | added | TCiur | This looks fantastic! However I am still not fully sure why Verschiebung acts as you say. Could you say a little more or provide a source for how one might figure this out? Thanks! | |
| S Aug 4, 2022 at 10:38 | history | suggested | TCiur | CC BY-SA 4.0 |
Minor typos
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| Aug 4, 2022 at 10:01 | review | Suggested edits | |||
| S Aug 4, 2022 at 10:38 | |||||
| Aug 2, 2022 at 11:38 | history | edited | Will Sawin | CC BY-SA 4.0 |
added 59 characters in body
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| Aug 1, 2022 at 15:45 | history | answered | Will Sawin | CC BY-SA 4.0 |