Physicist137
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SwisterTwister talk 04:16, 27 February 2017 (UTC)Physicist137, you are invited to the Teahouse! edit
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Cohn's theorem edit
The new article titled Cohn's theorem says:
An nth-degree polynomial,
is called self-inversive if
where
is the reciprocal polynomial associated with and the bar means complex conjugation.
I changed something in it: You had the notation pn referring BOTH to the polynomial itself and to one of the coefficients.
One problem in the present form of that article is that I cannot tell whether the passage above means
- for EVERY complex number ω for which |ω| = 1, or
- for SOME complex number ω for which |ω| = 1, or
- something else.
Can you clarify that? Michael Hardy (talk) 20:37, 12 April 2018 (UTC)
Hi Michael Hardy,
The correct is for SOME ω. Perhaps a more precise definition would be something like: "p(x) is called self-inversive if there exists a so that: ."