An extremal problem for the geometric mean of polynomials

Author:

Beller E.,Newman D. J.

Abstract

Let M 0 , n {M_{0,n}} be the maximum of the geometric mean of all n n th degree polynomials n a k e i k t {\sum ^n}{a_k}{e^{ikt}} which satisfy | a k | = 1 , k = 0 , 1 , , n |{a_k}| = 1,k = 0,1, \cdots ,n . We show the existence of certain polynomials R n {R_n} whose geometric mean is asymptotic to n \surd n , thus proving that M 0 , n {M_{0,n}} is itself asymptotic to n \surd n .

Publisher

American Mathematical Society (AMS)

Subject

Applied Mathematics,General Mathematics

Reference4 articles.

1. Polynomial extremal problems in 𝐿^{𝑝};Beller, E.;Proc. Amer. Math. Soc.,1971

2. On polynomials ∑ⁿ±𝑧^{𝑚}, ∑ⁿ𝑒^{𝛼_{𝑚}𝑖}𝑧^{𝑚}, 𝑧=𝑒^{𝜃ᵢ};Littlewood, J. E.;J. London Math. Soc.,1966

3. An 𝐿¹ extremal problem for polynomials;Newman, D. J.;Proc. Amer. Math. Soc.,1965

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