Timeline for How to calculate $N_{L/k}$(roots of unity)?
Current License: CC BY-SA 3.0
4 events
| when toggle format | what | by | license | comment | |
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| Mar 28, 2016 at 21:48 | comment | added | Will Sawin | There is a little more subtlety when $p=2$, take $K=\mathbb Q$, $L= \mathbb Q(i)$, $m=1$, $n=2$, the norm map is not surjective. This can only problems for $n=2$ though as if $n=3$ or higher, $-\zeta$ has the same order as $\zeta$. | |
| Mar 28, 2016 at 21:26 | history | edited | John Binder | CC BY-SA 3.0 |
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| Mar 28, 2016 at 15:17 | vote | accept | Alex | ||
| Mar 28, 2016 at 15:11 | history | answered | John Binder | CC BY-SA 3.0 |