Timeline for Any three plane conics has a line meeting them in a configuration of points with an order 5 symmetry
Current License: CC BY-SA 3.0
7 events
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| Aug 8, 2015 at 18:17 | comment | added | Noam D. Elkies | @Jason $-$ CW-ing your own answer is usually a mechanism for disclaiming individual credit for work done by others or jointly with others. Here it looks like there's no reason for you not to be individually recognized. | |
| Aug 8, 2015 at 15:12 | comment | added | Jim Bryan | Thanks Jason. So it looks like there must be a mistake in the $\overline{M}_2$ intersection theory argument then. The family of genus 2 curves on the K3 is nodal except for an isolated set of curves each of which has a tacnode singularity. I have to resolve the map $\mathbb{P}^2-\to\overline{M}_2$ to get the divisor $D$. Do we agree that I should then (given your argument) find that $D$ is an integer linear combination of boundary divisors (or at least not have 5s in the denominator)? | |
| Aug 8, 2015 at 14:14 | comment | added | Jason Starr | Dear Noam, Why not? Best, Jason | |
| Aug 8, 2015 at 13:44 | comment | added | Noam D. Elkies | Why "community wiki"? | |
| Aug 8, 2015 at 6:08 | history | edited | Jason Starr | CC BY-SA 3.0 |
added 74 characters in body
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| S Aug 8, 2015 at 6:03 | history | answered | Jason Starr | CC BY-SA 3.0 | |
| S Aug 8, 2015 at 6:03 | history | made wiki | Post Made Community Wiki by Jason Starr |