Erratum to: Sharp Constant in Jackson’s Inequality with Modulus of Smoothness for Uniform Approximations of Periodic Functions
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DOI: 10.1134/s0001434618110421
Abstract: My paper contains an error. Namely, inequality (9) does not hold. For example, for k = 2,I do not know whether the error in the argument can be corrected and whether the main result of… read more here.
Keywords: constant jackson; sharp constant; erratum sharp; jackson inequality ... See more keywords