K. Itoh, R. Sakai, N. Suzuki
Published 2013-11-13, updated 2014-12-15Version 2
We study the de la Vallee Poussin mean for exponential weights and give a polynomial approximation on real line. H. N. Mhasker proved the corresponding result for Freud-type weights. Our proof is valid for Erdos-type weights.
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