Timeline for Why does MAGMA claim that the automorphism group of an elliptic curve is order 24 when it is order 12?
Current License: CC BY-SA 4.0
7 events
| when toggle format | what | by | license | comment | |
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| Aug 12, 2019 at 5:38 | comment | added | Alex J Best |
Apparently I can't get this comment to format nicely, but the commands are: K:=FiniteField(3); L:=AlgebraicClosure(K); E:=EllipticCurve([L!(1),L!0]); E; //Elliptic Curve defined by y^2 = x^3 + x over L AutomorphismGroup(E);
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| Aug 11, 2019 at 18:54 | comment | added | Catherine Ray | How can I get magma to count only automorphisms as an elliptic curve? | |
| Aug 11, 2019 at 18:54 | vote | accept | Catherine Ray | ||
| Jun 14, 2019 at 10:30 | comment | added | Peter Taylor | I think there must be a sign error in the last line. $|A(\mathbf{F}_{41})| = 1 + 41 + (-7) = 35$ ? | |
| Jun 13, 2019 at 19:16 | history | edited | A million tiny pieces | CC BY-SA 4.0 |
added 12 characters in body
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| Jun 13, 2019 at 19:09 | history | edited | A million tiny pieces | CC BY-SA 4.0 |
added 24 characters in body
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| Jun 13, 2019 at 19:04 | history | answered | A million tiny pieces | CC BY-SA 4.0 |