Konovalov, V. N. On the orders of nonlinear approximations for classes of functions of given form. (English. Russian original) Zbl 1083.41017 Math. Notes 78, No. 1, 88-104 (2005); translation from Mat. Zametki 78, No. 1, 98-114 (2005). Reviewer: Yuly Makovoz (Lowell) MSC: 41A46 41A15 41A20 PDFBibTeX XMLCite \textit{V. N. Konovalov}, Math. Notes 78, No. 1, 88--104 (2005; Zbl 1083.41017); translation from Mat. Zametki 78, No. 1, 98--114 (2005) Full Text: DOI
Konovalov, V. N. Approximation of Sobolev classes by their finite-dimensional sections. (English. Russian original) Zbl 1019.41019 Math. Notes 72, No. 3, 337-349 (2002); translation from Mat. Zametki 72, No. 3, 370-382 (2002). MSC: 41A46 PDFBibTeX XMLCite \textit{V. N. Konovalov}, Math. Notes 72, No. 3, 337--349 (2002; Zbl 1019.41019); translation from Mat. Zametki 72, No. 3, 370--382 (2002) Full Text: DOI
Konovalov, V. N. Estimates of Kolmogorov-type widths for classes of differentiable periodic functions. (English) Zbl 0598.41026 Math. Notes 35, 193-199 (1984). MSC: 41A46 41A50 PDFBibTeX XMLCite \textit{V. N. Konovalov}, Math. Notes 35, 193--199 (1984; Zbl 0598.41026) Full Text: DOI
Konovalov, V. N. A complement to the Kolmogorov inequalities. (English) Zbl 0444.26007 Math. Notes 27, 100-104 (1980). MSC: 26A24 26D10 PDFBibTeX XMLCite \textit{V. N. Konovalov}, Math. Notes 27, 100--104 (1980; Zbl 0444.26007) Full Text: DOI
Konovalov, V. N. Precise inequalities for norms of functions, third partial, second mixed, or directional derivatives. (English) Zbl 0403.26008 Math. Notes 23, 38-44 (1978). MSC: 26B05 26D10 PDFBibTeX XMLCite \textit{V. N. Konovalov}, Math. Notes 23, 38--44 (1978; Zbl 0403.26008) Full Text: DOI