Abstract
In this work we will establish a sufficient condition under which the higher derivatives of 2Π-periodic absolutely continuous functions belong to the Orlicz classesϕ (L); ifϕ(2t)=O(ϕ(t)) (t → ∞), the condition is also necessary.
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Translated from Matematicheskie Zametki, Vol. 14, No. 4, pp. 479–486, October, 1973.
The author wishes to thank P. L. Ul'yanov for posing the problems in this paper and for helping to prepare the paper for publication.
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Temirgaliev, N. Conditions under which higher derivatives belong to the classesϕ (L). Mathematical Notes of the Academy of Sciences of the USSR 14, 832–836 (1973). https://doi.org/10.1007/BF01108807
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DOI: https://doi.org/10.1007/BF01108807