Imbedding classes of functions with dominant mixed modulus of smoothness. (English) Zbl 0322.46038
Proc. Steklov Inst. Math. 131 (1974), 206-218 (1975).
MSC:
| 46E35 | Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems |
| 26A15 | Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable |
| 41A50 | Best approximation, Chebyshev systems |
| 42A10 | Trigonometric approximation |
