Abstract
Inequalities strengthening certain inequalities of Jackson type are obtained with a precise constant.
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 44, No. 4, pp. 475–480, April, 1992.
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Doronin, V.G., Ligun, A.A. On strengthening inequalities of Jackson type. Ukr Math J 44, 416–421 (1992). https://doi.org/10.1007/BF01064874
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DOI: https://doi.org/10.1007/BF01064874