Direct and inverse theorems on the approximation of \(2\pi\)-periodic functions by Taylor-Abel-Poisson operators. (English. Ukrainian original) Zbl 1499.41036
Ukr. Math. J. 69, No. 5, 766-781 (2017); translation from Ukr. Mat. Zh. 69, No. 5, 657-669 (2017).
Summary: We prove direct and inverse theorems on the approximation of \(2\pi\)-periodic functions by Taylor-Abel-Poisson operators in the integral metric.
MSC:
| 41A27 | Inverse theorems in approximation theory |
References:
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