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math.CA2019
Elementary hypergeometric functions, Heun functions, and moments of MKZ operators
Ana Maria Acu, Ioan Rasa
We consider some hypergeometric functions and prove that they are elementary functions. Consequently, the second order moments of Meyer-Konig and Zeller type operators are elementa…
math.CA2019
Classical Kantorovich operators revisited
Ana Maria Acu, Heiner Gonska
The main object of this paper is to improve some of the known estimates for classical Kantorovich operators. A quantitative Voronovskaya-type result in terms of second moduli of co…