×

zbMATH — the first resource for mathematics

Widths of some classes of functions of several variables. (English. Russian original) Zbl 0524.41013
Sov. Math., Dokl. 26, 619-622 (1982); translation from Dokl. Akad. Nauk SSSR 267, 314-317 (1982).

MSC:
41A46 Approximation by arbitrary nonlinear expressions; widths and entropy
46E30 Spaces of measurable functions (\(L^p\)-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.)
42A05 Trigonometric polynomials, inequalities, extremal problems
PDF BibTeX XML Cite