R. Bruck et J. Muller, SUMMABILITY OF HADAMARD-PRODUCTS OF TAYLOR SECTIONS WITH POLYNOMIAL INTERPOLANTS, Journal of approximation theory, 78(1), 1994, pp. 30-40
In previous papers the first author extended the classical equiconverg
ence theorem of Walsh by the application of summability methods in ord
er to enlarge the disk of equiconvergence to regions of equisummabilit
y. The aim of this paper is to study equisummability of sequences whic
h arise from Hadamard products of a fixed power series with Lagrange p
olynomial interpolants. (C) 1994 Academic Press, Inc.