Kolmogorov widths of the classes LΨ (β,ρ) of periodic functions in the space Lq

by H. M. Vlasyk
Published 2017

Order estimates of the Lq-norms of generalized derivatives of the Dirichlet-type kernels with an arbitrary choice of harmonics

by H. M. Vlasyk
Published 2017

Bernstein–Nikol'skii-type inequalities for trigonometric polynomials with an arbitrary choice of harmonics

by H. M. Vlasyk
Published 2017

Estimates of norms of generalized derivatives of the Dirichlet type kernels with arbitrary choice of harmonics

by H. M. Vlasyk
Published 2016

Orthoprojective widths of classes Lшв,p of periodic functions in the space Lq

by H. M. Vlasyk
Published 2015

Estimates of orthoprojective widths of the classes Lβ, p Ψ of periodic functions in the space Lq

by H. M. Vlasyk
Published 2015

Estimates of the best orthogonal trigonometric approximations and orthoprojective widths of the classes of periodic functions of many variables in a uniform metric

by H. M. Vlasyk, V. V. Shkapa, I. V. Zamrii
Published 2019