%0 Journal Article
%T Newman-Rivlin asymptotics for partial sums of power series
%A Antonio R. Vargas
%J Mathematics
%D 2015
%I arXiv
%X We discuss analogues of Newman and Rivlin's formula concerning the ratio of a partial sum of a power series to its limit function and present a new general result of this type for entire functions with a certain asymptotic character. The main tool used in the proof is a Riemann-Hilbert formulation for the partial sums introduced by Kriecherbauer et al. This new result makes some progress on verifying a part of the Saff-Varga Width Conjecture concerning the zero-free regions of these partial sums.
%U http://arxiv.org/abs/1503.04262v1