4 papers
math.CA2017
Order estimates of approximation characteristics of functions from anisotropic Nikol'skii-Besov classes
S. Ya. Yanchenko
We obtained exact order estimates of the deviation of functions from anisotropic Nikol'skii-Besov classes from their sections of the Fourie…
math.CA2017
The best approximation of functions from anisotropic Nikol'skii-Besov classes defined in
S. Ya. Yanchenko
We establish the exact-order estimates of the best approximations of the functions from anisotropic Nikol'skii-Besov classes of several variables by entire functions in the Lebesgu…
math.CA2016
Approximative characteristics of classes of functions with a given majorant of mixed modulus of smoothness
S. Ya. Yanchenko, S. A. Stasyuk
We obtain order estimates of approximation of functions from the classes in the space , , by entire functions of expone…
math.CA2016
Order estimates of approximative characteristics of functions from classes
S. Ya. Yanchenko
We obtained exact order estimates of approximation of the classes by entire functions of exponential type with supports of their Fourier transforms in s…