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ON THE APPROXIMATION BY EULER, BOREL AND TAYLOR MEANS IN ENLARGED HÖLDER CLASSES BOGDAN SZAL Fa ulty of Mathemati s, Computer S ien e and E onometri s University of Zielona Góra Szafrana 4a, 65-516 Zielona Góra, Poland E-mail: B.Szal wmie.uz.zgora.pl Abstra t. We generalize and improve in some ases the results of Mahapatra and Chandra [7℄. As a measure of Hölder norm approximation, generalized modulus-type fun tions are used. 1. Introdu tion. Let f be a ontinuous and 2π-periodi fun tion and let f(x) ∼ a0 2 + ∞

On the approximation by Euler, Borel and Taylor means in enlarged Hölder classes