in IMA Journal of Numerical Analysis
January 2016; p ublished online March 2015 .
Journal Article. Subjects: Mathematics; Numerical and Computational Mathematics. 4227 words.
If [math] is a bounded linear operator mapping the Banach space [math] into the Banach space [math] and [math] is a compact set in [math], then the Kolmogorov widths of the image [math] do...