@article{Acu_Gonska_2019, title={Classical Kantorovich operators revisited}, volume={71}, url={http://umj.imath.kiev.ua/index.php/umj/article/view/1472}, abstractNote={UDC 517.5 <br>
The main object of this paper is to improve some known estimates for the classical Kantorovich operators. We obtain a
quantitative Voronovskaya-type result in terms of the second moduli of continuity, which improves some previous results.
In order to explain the nonmultiplicativity of the Kantorovich operators, we present a Chebyshev – Gr¨uss inequality. Two
Gr¨uss –Voronovskaya theorems for Kantorovich operators are also considered.}, number={6}, journal={Ukrains’kyi Matematychnyi Zhurnal}, author={AcuA.-M. and GonskaH.}, year={2019}, month={Jun.}, pages={739-747} }