%0 Journal Article
%T Korovkin-type Theorems and Approximation by Positive Linear Operators
%A Francesco Altomare
%J Surveys in Approximation Theory
%D 2010
%I 
%X This survey paper contains a detailed self-contained introduction to Korovkin-type theorems and to some of their applications concerning the approximation of continuous functions as well as of L_p-functions, by means of positive linear operators. The paper also contains several new results and applications. Moreover, the organization of the subject follows a simple and direct approach which quickly leads both to the main results of the theory and to some new ones.
%K Korovkin-type theorem
%K positive operator
%K approximation by positive operators
%K Stone-Weierstrass theorem
%K (weighted) continuous function space
%K Lp-space.
%U http://www.math.technion.ac.il/sat/papers/13/13.pdf