Vasil’eva, Anastasia A. Kolmogorov widths of intersections of weighted Sobolev classes on an interval with conditions on the zeroth and first derivatives. (English. Russian original) Zbl 1460.41014 Izv. Math. 85, No. 1, 1-23 (2021); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 85, No. 1, 3-26 (2021). Reviewer: Yuri A. Farkov (Moskva) MSC: 41A46 PDF BibTeX XML Cite \textit{A. A. Vasil'eva}, Izv. Math. 85, No. 1, 1--23 (2021; Zbl 1460.41014); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 85, No. 1, 3--26 (2021) Full Text: DOI OpenURL
Trynin, A. Yu. On the uniform approximation of functions of bounded variation by Lagrange interpolation polynomials with a matrix \({\mathcal L}_n^{(\alpha_n,\beta_n)}\) of Jacobi nodes. (English. Russian original) Zbl 1466.41002 Izv. Math. 84, No. 6, 1224-1249 (2020); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 197-222 (2020). Reviewer: Antonio López-Carmona (Granada) MSC: 41A05 PDF BibTeX XML Cite \textit{A. Yu. Trynin}, Izv. Math. 84, No. 6, 1224--1249 (2020; Zbl 1466.41002); translation from Izv. Ross. Akad. Nauk, Ser. Mat. 84, No. 6, 197--222 (2020) Full Text: DOI OpenURL