Timeline for Extension of a multiple of a rational point to an integral point of a semiabelian scheme
Current License: CC BY-SA 4.0
3 events
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| Sep 24, 2021 at 9:10 | comment | added | Damian Rössler | @Chris. Thank you for this. This exercise does give an answer when $k$ is finite (and I think it also works for abelian varieties) but I would be interested in the general case. I am beginning to doubt that there is an elementary proof though. This problem is probably just as difficult as (a good part of) the construction of the Néron model... | |
| Sep 23, 2021 at 20:51 | comment | added | Chris Wuthrich | For elliptic curves, exercise VII.6 in Silverman may be relevant. | |
| Sep 23, 2021 at 12:48 | history | asked | Damian Rössler | CC BY-SA 4.0 |