Walsh Equiconvergence of Complex Interpolating Polynomials (Springer Monographs in Mathematics)

1) but not in|z|? ?, then the di?erence between the Lagrange interpolant to it th in the n roots of unity and the partial sums of degree n? 1 of the Taylor 2 series about the origin, tends to zero in a larger disc of radius ? , although both operators converge to f(z) only for|z|