Estimates for n-widths of sets of smooth functions on the torus Td. - Alexander Kushpel; R. L. B. Stabile; Sergio A. Tozoni (J. Approx. Theory, 2014)

Estimates for entropy numbers of sets of smooth functions on the torus Td. - R. L. B. Stabile; Sergio A. Tozoni (J. Approx. Theory, 2018)