MEDITERRANEAN JOURNAL OF MATHEMATICS, cilt.7, sa.1, ss.111-121, 2010 (SCI-Expanded)
In this paper, we study a general Korovkin-type approximation theory by using the notion of ideal convergence which includes many convergence methods, such as, the usual convergence, statistical convergence, A-statistical convergence, etc. We mainly compute the rate of ideal convergence of sequences of positive linear operators.