TY - JOUR
AU - V. V. Savchuk
AU - M. V. Savchuk
AU - S. O. Chaichenko
PY - 2019/04/25
Y2 - 2020/12/02
TI - Approximation of bounded holomorphic
and harmonic functions by Fejér means
JF - Ukrains’kyi Matematychnyi Zhurnal
JA - Ukr. Mat. Zhurn.
VL - 71
IS - 4
SE - Research articles
DO -
UR - http://umj.imath.kiev.ua/index.php/umj/article/view/1455
AB - We compute the exact values of the exact upper bounds on the classes of bounded holomorphic and harmonic functionsin a unit disk for the remainders in a Voronovskaya-type formula in the case of approximation by Fej´er means. We alsopresent some consequences that are of independent interest.
ER -