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Timeline for k-th powers in the field of p-adics

Current License: CC BY-SA 3.0

10 events
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Jul 11, 2011 at 15:17 comment added Geoff Robinson Sure, it's OK if you allow rational $n$.
Jul 11, 2011 at 14:03 comment added Silvain Rideau Well I guess then you have to allow n to be rationnal (or at least of the form 1/n where n is an interger).
Jul 11, 2011 at 13:54 vote accept Silvain Rideau
Jul 11, 2011 at 14:12
Jul 11, 2011 at 11:04 comment added Geoff Robinson Thanks. Well, it seems to be fine if $\nu(x) >0$, since we can just choose replace $x$ by $\frac{x}{m}$ for some integer $m$ with $\nu(m) = \nu(x)$. Since the conclusion is just about $\frac{x}{n}$ for some integer $n$, this doesn't change anything. But if $\nu(x) <0$, I don't see what to do, if you're only allowed to divide by inetgers.
Jul 11, 2011 at 10:03 comment added Silvain Rideau I am under the impression this generalises nicely if v(x) is not 0. Indeed, at some point I began to wonder if Qp*/(Qp*)^k was finite and the explicit bound here seems to point that way.
Jul 11, 2011 at 9:57 vote accept Silvain Rideau
Jul 11, 2011 at 13:53
Jul 9, 2011 at 21:44 history edited Geoff Robinson CC BY-SA 3.0
added more necessary details for case $p=2$.
Jul 7, 2011 at 0:09 history edited Geoff Robinson CC BY-SA 3.0
typos
Jul 6, 2011 at 12:19 history edited Geoff Robinson CC BY-SA 3.0
Typos
Jul 6, 2011 at 11:00 history answered Geoff Robinson CC BY-SA 3.0