Ramos Durán, Sebastián
(Universidad Michoacana de San Nicolás de Hidalgo, 2008-01)
Contents: 1. Approximation in normed spaces 2. Uniform approximation 3. Characterization of a better approximation 4. Approximation in a finite set of points Given an x ? X and a subset of X. Q W e want to find a y ? W ...