Approximation properties of generalized Baskakov-Schurer-Szasz-Stancu operators preserving e-2ax, a > 0

The current paper deals with a modified form of the Baskakov-Schurer-Szasz-Stancu operators which preserve e-2ax for a>0. The uniform convergence of the modified operators is shown. The rate of convergence is investigated by using the usual modulus of continuity and the exponential modulus of continuity. Then Voronovskaya-type theorem is given for quantitative asymptotic estimation