Publications of (and about) Paul Erdös
Autor: Erdös, Paul; Varma, A.K.
Title: An extremum problem concerning algebraic polynomials. (In English)
Source: Acta Math. Hung. 47, 137-143 (1986).
Review: Sharp estimates of Markov type for derivatives of the polynomials pn(x) = sumnk = 0ak(1+x)k(1-x)n-k with ak \geq 0 in L2-norm on [-1,1] are given. This extends some earlier results by G.G.Lorentz and the second author.
Classif.: * 26D05 Inequalities for trigonometric functions and polynomials
26C05 Polynomials: analytic properties (real variables)
Keywords: Markov's inequality for polynomials
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