Approximation by Complex Szász--Mirakyan--Stancu--Durrmeyer Operators in Compact Disks under Exponential Growth

Sorin G. Gal, Vijay Gupta

In the present paper, we deal with the complex Szász--Stancu--Durrmeyer operators and study Voronovskaja type results with quantitative estimates for these operators attached to analytic functions of exponential growth on compact disks. Also, the exact order of approximation is found.