On approximations by trigonometric polynomials of classes of functions defined by moduli of smoothness

Nimete Sh. Berisha, Faton M. Berisha, Mikhail K. Potapov +1

In this paper, we give a characterization of Nikol'ski\uı-Besov type classes of functions, given by integral representations of moduli of smoothness, in terms of series over the mo…