Atlihan, Ozlem Girgin; Unver, Mehmet; Duman, Oktay
(Springer, 2017-12)
In this note, using the idea of the late Professor Gadjiev (Mat Zametki 20(5):781-786, 1976), we give new, direct and easy proofs of the Korovkin theorems for positive linear operators acting on weighted spaces. Recent ...