Xm. Zeng, ON THE RATE OF CONVERGENCE OF THE GENERALIZED SZASZ TYPE OPERATORS FOR FUNCTIONS OF BOUNDED VARIATION, Journal of mathematical analysis and applications (Print), 226(2), 1998, pp. 309-325
In this article we introduce the Szasz-Bezier operator S-n,S- alpha wh
ich is the modified form of the Szasz-Mirakyan operator. By means of c
onstruction of suitable functions and the methods of Bojanic-Vuillemie
r [J. Approx. Theory 31 (1981), 67-79] and Cheng [J. Approx. Theory 40
(1984), 226-241], using some results and techniques of probability th
eory, we obtain the rate of convergence of S-n,S- alpha for functions
of bounded variation. Our results extend and sharpen the results of Ch
eng [J. Approx. Theory 40 (1984), 226-241], Guo and Khan [J. Approx. T
heory 58 (1989), 90-101] for the Szasz-Mirakyan operator. (C) 1998 Aca
demic Press.