WIDTHS OF DIFFERENTIABLE FUNCTION SET 

Boykov Ilya Vladimirovich, Doctor of Science (in Mathematics), professor, head of sub-department of highest and applied mathematics, Penza State University

518.5

Evaluated Babenko and Kolmogorov widths of functional sets . Constructed local splines which are the optimal in order methods for approximation of functional classes.

approximation, local splines, Babenko and Kolmogorov widths.