On the Lebesgue function of weighted Lagrange interpolation. II

P. Vértesi
Mathematical Institute of the Hungarian Academy of Sciences
Budapest P.O.B. 127
Hungary, 1364

Abstract:

The aim of this paper is to continue our investigation of the Lebesgue function of weighted Lagrange interpolation by considering Erdos weights on $\mathbb{R}$ and weights on [-1,1]. The main results give lower bounds for the Lebesgue function on large subsets of the relevant domains.