Concise but wide-ranging, this text provides an introduction to methods of approximating continuous functions by functions that depend only on a finite number o

This monograph records progress in approximation theory and harmonic analysis on balls and spheres, and presents contemporary material that will be useful to an

The first investigations of nonlinear approximation problems were made by P.L. Chebyshev in the last century, and the entire theory of uniform approxima tion is

Most functions that occur in mathematics cannot be used directly in computer calculations. Instead they are approximated by manageable functions such as polynom

Contains the proceedings of the March 1991 annual conference of the Southeastern Approximation Theorists, in Memphis, Tenn. The 34 papers discuss topics of inte