Kornejchuk, N. P. Widths in \(L_ p\) of classes of continuous and of differentiable functions, and optimal methods of coding and recovering functions and their derivatives. (English) Zbl 0536.41026 Math. USSR, Izv. 18, 227-247 (1982). MSC: 41A46 41A65 42A99 41A50 41A17 PDF BibTeX XML Cite \textit{N. P. Kornejchuk}, Math. USSR, Izv. 18, 227--247 (1982; Zbl 0536.41026) Full Text: DOI
Kornejchuk, N. P. Diameters in \(L_ p \)classes of continuous and differentiable functions and optimal methods of coding and restoration of functions and their derivatives. (Russian) Zbl 0511.41030 Izv. Akad. Nauk SSSR, Ser. Mat. 45, 266-290 (1981). MSC: 41A46 41A65 42A99 PDF BibTeX XML Cite \textit{N. P. Kornejchuk}, Izv. Akad. Nauk SSSR, Ser. Mat. 45, 266--290 (1981; Zbl 0511.41030)