K-interpolations in problems of uniform approximation of functions von Pichugov , S. A., Пичугов , С. А.

Volltext

Concave shells of continuity modules von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Multiple modules of continuity and the best approximations of periodic functions in metric spaces von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Nikol’skii – Stechkin-type inequalities for the increments of trigonometric polynomials in metric spaces von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Some properties of the moduli of continuity of periodic functions in metric spaces von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Inverse Jackson theorems in spaces with integral metric von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Lower bounds for the deviations of the best linear methods of approximation of continuous functions by trigonometric polynomials von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Smoothness of functions in the metric spaces Lψ von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

On the Jackson theorem for periodic functions in metric spaces with integral metric. II von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Inequalities for trigonometric polynomials in spaces with integral metric von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

On the jackson theorem for periodic functions in spaces with integral metric von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

On the existence of a measurable function with given values of the best approximations in $L_0$ von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Approximation of measurable periodic functions in measure by step functions von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Approximation of compressions of periodic functions in the space $L_p,\; p < 1$ von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Approximation of periodic functions by constants in the metric spaces $ϕp(L)$ von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

Asymptotic behavior of the best approximations for the functions in $L_p$ von Pichugov, S. A., Пичугов, С. А., Пичугов, С. А.

Volltext

The Marchaud's inequality for multiple modules of continuity in metric spaces von Pichugov, S. A., Пічугов, С. О., Пичугов, С. А.

Volltext

Sharp Kolmogorov-type inequalities for norms of fractional derivatives of multivariate functions von Babenko, V.F., Parfinovych, N.V., Pichugov, S.A.

Volltext

Inequality of the Bernshtein type for polynomial splines in the space $L_2$ von Babenko , V. F., Pichugov , S. A., Бабенко , В. Ф., Пичугов , С. А.

Volltext

Sharp Kolmogorov-type inequalities for norms of fractional derivatives of multivariate functions von Babenko, V. F., Parfinovych, N. V., Pichugov, S. A., Бабенко, В. Ф., Парфінович, Н. В., Пічугов, С. О.

Volltext