Let C be the space of continuous 2π-periodic functions. For some integrals of the form ∫π0ωr(f,t)Φ(t)dt, where ω r (f, t) is the modulus of continuity of order r of a function f in C, two-sided bounds in terms of the best approximations by trigonometric polynomials are established.
Original languageEnglish
Pages (from-to)848-858
JournalJournal of Mathematical Sciences
Volume225
Issue number6
Early online date12 Aug 2017
DOIs
StatePublished - Sep 2017

    Scopus subject areas

  • Analysis

ID: 9216366