Timeline for Can an algebraic number on the unit circle have a conjugate with absolute value different from 1?
Current License: CC BY-SA 2.5
4 events
| when toggle format | what | by | license | comment | |
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| Sep 14, 2010 at 14:27 | history | edited | cfranc | CC BY-SA 2.5 |
added 4 characters in body
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| Sep 14, 2010 at 14:27 | comment | added | cfranc | Yup, sorry. Fixed now. | |
| Sep 14, 2010 at 14:14 | comment | added | Denis Serre | Something wrong here. The conjugates of a root of unity are roots of unity of the same order (the roots of one cyclotomic polynomial). Therefore either $\lambda$ is of modulus one (clearly not the case), or the polynomial is not irreducible (over ${\mathbb Q}$). I opt for the third possibility: you did not mean 'root of unity', but only 'complex number on the unit circle' | |
| Sep 14, 2010 at 13:36 | history | answered | cfranc | CC BY-SA 2.5 |