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S Sep 15, 2022 at 19:00 history bounty ended CommunityBot
S Sep 15, 2022 at 19:00 history notice removed CommunityBot
S Sep 7, 2022 at 17:07 history bounty started user123
S Sep 7, 2022 at 17:07 history notice added user123 Draw attention
Oct 15, 2021 at 19:47 comment added Doug Liu Sorry, but I am confused. By $z^2=3x$ you mean a projective quadratic curve of genus $0$? How to cover a genus $1$ curve by another of genus $0$?
Feb 13, 2020 at 9:20 comment added Felipe Voloch Try the cover of $y^2=x^3-x$ given by $z^2=3x$ with $p=3$.
Feb 13, 2020 at 7:12 history edited Pat CC BY-SA 4.0
corrected minor mistake in second paragraph
Feb 11, 2020 at 15:05 history asked Pat CC BY-SA 4.0