Timeline for j-invariant of a supersingular elliptic curve
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Mar 19, 2010 at 1:13 | comment | added | Sam Derbyshire | Haha, I guess it was confusing; it's clear that we need the zeroth power whenever our map is separable. As for the rest, I don't see any issues; it's a standard answer anyway! | |
| Mar 19, 2010 at 1:07 | history | edited | Sam Derbyshire | CC BY-SA 2.5 |
Multiplication by p should be purely inseparable, not just inseparable...
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| Mar 19, 2010 at 1:00 | comment | added | Pete L. Clark | Let me return the favor: every isogeny factors as above with the convention that the power of the Frobenius is allowed to be the zeroth power! By the way, it strikes me that it should be possible to "merge" answers and split the credit. That would be appropriate here... | |
| Mar 19, 2010 at 0:50 | history | answered | Sam Derbyshire | CC BY-SA 2.5 |