Pointwise Estimate for Szasz-Type Operators

@inproceedings{Guo1998PointwiseEF,
  title={Pointwise Estimate for Szasz-Type Operators},
  author={Shunsheng Guo and Cuixiang Li and Yiguo Sun and Ge Sheng Yang and Shujie Yue},
  year={1998}
}
For combinations of modified Szasz operators D. X. Zhou gave two equivalent relations by means of the classical modulus. In this paper we extend these results by the Ditzian?Totik modulus of smoothness.