Timeline for Abelian (possibly ramified covers) of elliptic curves

8 events

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Aug 26, 2017 at 17:29	comment	added	stupid_question_bot		@FelipeVoloch I've edited the question, so as to refer only to elliptic curves (ie, an origin has been chosen), so by "$D$ is torsion" I mean that $D\subset E[m]$ for some $m\ge 1$.
Aug 26, 2017 at 17:28	history	edited	stupid_question_bot	CC BY-SA 3.0	added 151 characters in body
Aug 26, 2017 at 10:03	comment	added	Felipe Voloch		If $D = x_1+x_2$ and $x_2-x_1$ is torsion, say $(f) = n(x_2-x_1)$, the covers given by $z^r = f$ give a map $\Pi_D \to \pi_1 \times {\hat{\mathbb{Z}}}$ with finite kernel.
Aug 26, 2017 at 9:57	comment	added	Felipe Voloch		What do you mean by $D$ torsion? It can't be torsion in the usual sense since it has positive degree. Do you mean it is supported on torsion points? Even for that, you need to choose an origin.
Aug 26, 2017 at 4:47	history	edited	stupid_question_bot	CC BY-SA 3.0	added 33 characters in body
Mar 16, 2017 at 7:01	history	edited	stupid_question_bot	CC BY-SA 3.0	deleted 454 characters in body
Feb 28, 2017 at 23:53	history	edited	stupid_question_bot	CC BY-SA 3.0	added 11 characters in body
Feb 26, 2017 at 4:32	history	asked	stupid_question_bot	CC BY-SA 3.0