2019
Том 71
№ 11

# Romanyuk V. S.

Articles: 18
Article (Ukrainian)

### Estimates of some approximating characteristics of the classes of periodic functions of one and many variables

Ukr. Mat. Zh. - 2019. - 71, № 8. - pp. 1102-1115

UDC 517.5
We obtain the exact-order estimates for some approximating characteristics of the classes $\mathbb{W}^{\boldsymbol{r}}_{p,\boldsymbol{\alpha}}$ and $\mathbb{B}^{\boldsymbol{r}}_{p,\theta}$ of periodic functions of one and many variables in the norm of the space $B_{\infty, 1}.$

Article (Ukrainian)

### Approximating characteristics of the classes of periodic multivariate functions in the space $B_{∞,1}$

Ukr. Mat. Zh. - 2019. - 71, № 2. - pp. 271-282