Timeline for Why do roots of polynomials tend to have absolute value close to 1?
Current License: CC BY-SA 3.0
9 events
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Oct 9, 2014 at 15:48 | comment | added | asmeurer | I think one would need to show that random polynomials tend to be near-cyclotomic. | |
Oct 7, 2014 at 0:29 | comment | added | François G. Dorais | As seen in my answer, this doesn't seem to explain rotational symmetry at all. In fact, it suggests the opposite. | |
Oct 6, 2014 at 14:32 | comment | added | Martin Brandenburg | "Then the ai's will be roughly equal," Why? | |
Oct 6, 2014 at 13:49 | history | edited | tros443 | CC BY-SA 3.0 |
added 128 characters in body
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Oct 5, 2014 at 16:21 | comment | added | Joonas Ilmavirta | Continuity only seems to explain it for small perturbations of the coefficients. I know that this is only supposed to be a heuristic justification, so it is not an enormous issue. | |
Oct 5, 2014 at 15:53 | comment | added | tros443 | Well, the roots of a polynomial as a function of its coefficient is a continuous function. So polynomials with coefficients that are roughly equal, have roots that are roughly equal. | |
Oct 5, 2014 at 15:38 | comment | added | Joonas Ilmavirta | This is a nice intuitive explanation, but there is a gap that I have hard time filling heuristically. It is not at all clear that if the coefficients of a polynomial are equal on average, their zeroes should be where they were if the coefficients were actually equal. Is there a simple explanation for this? | |
Oct 5, 2014 at 15:28 | review | First posts | |||
Oct 5, 2014 at 15:38 | |||||
Oct 5, 2014 at 15:23 | history | answered | tros443 | CC BY-SA 3.0 |