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Jun 16, 2019 at 21:59 comment added Kris Kwiatkowski Argh, obviously it should say isomorphism class. Fixed now
Jun 16, 2019 at 21:58 history edited Kris Kwiatkowski CC BY-SA 4.0
added 8 characters in body
Jun 16, 2019 at 17:42 comment added Luca De Feo You seem to be confusing "isogeny class" and "isomorphism class". That two isogenous curves are in the same isogeny class is a tautology. Your question is about why E_ab and E_ba are in the same isomorphism class.
Jun 16, 2019 at 2:59 answer added djao timeline score: 4
Jun 15, 2019 at 20:23 history edited Kris Kwiatkowski CC BY-SA 4.0
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Jun 15, 2019 at 20:12 history asked Kris Kwiatkowski CC BY-SA 4.0