
Is Smale's Mean Value conjecture true?
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A critical point of a polynomial means a point where its derivative is 0. Smale's Mean Value conjecture states that for any polynomial P that has degree at least 2, and any complex number z that is not a critical point of P, there exists some critical point c of P such that
|(P(z) - P(c))/(z-c)| ≤ |P'(z)|
Note the order of quantifiers: c can depend on z, so there does not have to be one critical point that does it for all z.
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