2019
Том 71
№ 11

# Kovtunets V. V.

Articles: 5
Anniversaries (Ukrainian)

Ukr. Mat. Zh. - 2019. - 71, № 2. - pp. 147-150

Article (Ukrainian)

### Convergence of an algorithm for constructing snakes

Ukr. Mat. Zh. - 1994. - 46, № 7. - pp. 825–832

We investigate an algorithm for constructing snakes (extremal polynomials introduced by S. Karlin) suggested by Dzyadyk. It is proved that, in the general case, this algorithm is linearly convergent. In the case where the basis functions of the Chebyshev system belong to the class $C^2$, this algorithm is quadratically convergent.

Article (Ukrainian)

### Differential properties of the operator of best approximation of complex-valued functions. II

Ukr. Mat. Zh. - 1987. - 39, № 6. - pp. 721–727

Article (Ukrainian)

### Differential properties of the best-approximation operator for complex-valued functions. I

Ukr. Mat. Zh. - 1986. - 38, № 4. - pp. 437–443

Article (Ukrainian)

### Generalization of S. N. Bernshtein's parametric method

Ukr. Mat. Zh. - 1983. - 35, № 6. - pp. 689-695