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On the entropy numbers and the Kolmogorov widths (2203.00605v1)
Published 15 Feb 2022 in math.FA, cs.NA, math.CA, and math.NA
Abstract: Direct estimates between linear or nonlinear Kolmogorov widths and entropy numbers are presented. These estimates are derived using the recently introduced Lipschitz widths. Applications for m-term approximation are obtained.