Duffin and Schaeffer Type Inequality for
β
Borislav Bojanov; Geno Nikolov
π
Article
π
1996
π
Elsevier Science
π
English
β 280 KB
## We show that in the uniform norm for every real algebraic polynomial f of degree n which satisfies the inequalities | f (x)| |P (:, :) n (x)| at the points x of local extrema of the ultraspherical polynomial P (:, :) n in [&1, 1].