Approximate characteristics of the classes \( {B}_{p,\theta}^{\Omega} \) of periodic functions of one variable and many ones

Resumo

We obtained the exact-by-order estimates of some approximate characteristics of classes of the Nikol’skii–Besov type of periodic functions of one variable and many ones in the space B_∞,1 such that the norm in it is not weaker than the L_∞-norm.