Notes on zygmund functions

In this paper we study a class of continuous functions satisfying a certain Zyg-mund condition dependent on a parameter γ > 0. It shown that the modulus of continuity of such functions is O(δ(log 1/δ)1-γ) if ∈ (0, 1) and O(δ(log log 1/δ )) if γ = 1. Moreover, these functions are differentiable if...

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Bibliographic Details
Main Authors: Akhadkulov, Habibulla, Mohd Salmi, Noorani, Saaban, Azizan, Akhatkulov, Sokhobiddin
Format: Article
Language:English
Published: Academic Publications, Ltd. 2017
Subjects:
Online Access:https://repo.uum.edu.my/id/eprint/21982/1/IJPAM%20112%203%202017%20461%20488.pdf
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Summary:In this paper we study a class of continuous functions satisfying a certain Zyg-mund condition dependent on a parameter γ > 0. It shown that the modulus of continuity of such functions is O(δ(log 1/δ)1-γ) if ∈ (0, 1) and O(δ(log log 1/δ )) if γ = 1. Moreover, these functions are differentiable if γ > 1. These results extend the results in literatures [4], [5].