Inequalities of Jackson-Stechkin type for elements of Hilbert space (in Russian)

Vladyslav Babenko, Svitlana Konareva

In this paper we introduced a new characteristics of the elements of a Hilbert space - generalized moduli of continuity ${\omega }_{\phi }(x;L_{p,V}([0,\delta ]))$ and obtain new exact inequalities of…