Uniform approximation by Mc Callig rationals


Mc Callig considered ordinary rational functionsp/q on [0,α] or a finite subset with the denominatorq satisfying a normalization condition and having a lower bound. Existence of best uniform approximations and behavior of discretization are major topics of this paper. Characterization, uniqueness and denisty are also examined. 
DOI: 10.1007/BF02140683