Timeline for Polynomials having all their zeros on the unit circle
Current License: CC BY-SA 4.0
14 events
when toggle format | what | by | license | comment | |
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Nov 1, 2023 at 19:00 | comment | added | GH from MO | The "Close" votes are not justified. Please do not vote to close this question, as it is clearly on topic. | |
Oct 30, 2023 at 19:14 | comment | added | fedja | The trivial lower bound is $\frac\pi 2M$. It is certainly not sharp and will improve to the desired bound $2M$ if we could show, for instance, that for every polynomial $P$ with the roots on the circle and maximal value $2$, we have $|\{|P|>t\}|\le|\{|z-1|>t\}|$ for all $t\in(0,2)$, which seems plausible but I have no proof at the moment :-). | |
Oct 29, 2023 at 10:30 | vote | accept | user159888 | ||
Oct 29, 2023 at 1:03 | comment | added | LSpice | @Conrad's answer referenced by @GHfromMO, and their comment on it. | |
Oct 29, 2023 at 1:02 | history | edited | LSpice | CC BY-SA 4.0 |
Tidying, while this is on the front page
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Oct 29, 2023 at 0:56 | comment | added | GH from MO | See my comment to Conrad's post below. | |
Oct 28, 2023 at 23:48 | answer | added | Conrad | timeline score: 9 | |
Oct 28, 2023 at 14:30 | history | became hot network question | |||
Oct 28, 2023 at 9:58 | comment | added | user159888 | Sorry, there was a typo. corrected it now. | |
Oct 28, 2023 at 9:57 | history | edited | user159888 | CC BY-SA 4.0 |
edited body
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Oct 28, 2023 at 9:39 | answer | added | Oscar Lanzi | timeline score: 1 | |
Oct 28, 2023 at 7:57 | review | Close votes | |||
Nov 4, 2023 at 3:04 | |||||
Oct 28, 2023 at 6:42 | comment | added | Fedor Petrov | What about $1+z+... +z^n$? | |
Oct 28, 2023 at 6:29 | history | asked | user159888 | CC BY-SA 4.0 |