Timeline for Can the sum of two roots of unity be a root of unity?
Current License: CC BY-SA 3.0
9 events
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Apr 9, 2013 at 13:05 | history | edited | Loïc Teyssier | CC BY-SA 3.0 |
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Apr 9, 2013 at 12:56 | history | edited | Loïc Teyssier | CC BY-SA 3.0 |
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Apr 9, 2013 at 12:47 | comment | added | Loïc Teyssier | Sure. I do that now. | |
Apr 9, 2013 at 12:43 | comment | added | user9072 | I did not mean to say I have an easier way to give an example for even order, but that in my opinion the case allowing even order is easier than the case where one would insist on odd order. It seems quite possible that this answer does not answer the (intended) question at all. If you could add an example for prime $p$, by contrast it surely would. | |
Apr 9, 2013 at 12:32 | comment | added | Loïc Teyssier | Well, in some papers $p$ stands for e.g. a point in a euclidian space. I don't know where we are supposed to stop double-guessing the OP's intent. Personnally I draw the line at the minimal type-casting needed to make sense of the statement. As for the rest of your comment, why, good for you. I don't think the question is so involved that we shall start to compete about who's got the shortest (answer). | |
Apr 9, 2013 at 12:23 | comment | added | user9072 | Since the question uses $p$ I assume that it was intended to be prime. It thus seems a bit unfortunate to me to give examples for $4$ and $6$. Even more so, since it seems genuinely easier to me to come up with examples for even order. | |
Apr 9, 2013 at 12:08 | history | edited | Douglas Zare | CC BY-SA 3.0 |
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Apr 9, 2013 at 12:01 | history | edited | Loïc Teyssier | CC BY-SA 3.0 |
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Apr 9, 2013 at 11:55 | history | answered | Loïc Teyssier | CC BY-SA 3.0 |