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Turkish Journal of Mathematics

Authors

RAMAZAN AKGÜN

DOI

10.3906/mat-1707-69

Abstract

We prove that Gadjieva's conjecture holds true as stated in her PhD thesis. The positive solution of this conjecture allows us to obtain improved versions of the Jackson--Stechkin type inequalities obtained in her thesis and some others. As an application, an equivalence of the modulus of smoothness with the realization functional is established. We obtain a characterization class for the modulus of smoothness.

First Page

1484

Last Page

1503

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