Best $m$-term trigonometric approximation for periodic functions with low mixed
smoothness from the Nikol’skii – Besov-type classes
Authors
S. A. Stasyuk
Ин-т математики НАН Украины, Киев
Abstract
We establish the exact-order estimates of the best $m$-term trigonometric approximation for periodic multivariable functions
(with low mixed smoothness) from the Nikol’skii – Besov-type classes.