On the operator of Bleimann, Butzer and Hahn.
A sequence considered by I. J. Schoenberg?
A simple solution to Basel problem.
A proof of Leibniz's formula for divided differences.
On a generalization of an approximation operator defined by A. Lupaş.
Rate of convergence of beta operators of second kind for functions with derivatives of bounded variation.
A note on a problem arising from risk theory
In this note we give an answer to a problem of Gheorghiță Zbăganu that arose from the study of the properties of the moments of the iterates of the integrated tail operator.
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