Direkte und inverse Sätze vom Jacksonschen Typ in \(L_p\)-Räumen, \(0<p<1\). (Russian) Zbl 0314.41004
MSC:
| 41A10 | Approximation by polynomials |
| 41A65 | Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) |
| 42A10 | Trigonometric approximation |
| 41A50 | Best approximation, Chebyshev systems |
| 42C05 | Orthogonal functions and polynomials, general theory of nontrigonometric harmonic analysis |
