Lebesgue-type inequalities for de la Vallee Poussin sums and their interpolation analogues on the sets $(\psi ,\bar{\beta })$-differentiable functions

V. A. Voitovych, A. P. Musienko

We obtain the estimates of steady rates of deviations of the de Vallée Poussin sums and interpolation analogues of sums of Vallée Poussin from the functions that belong to the spac…