Characterization of the Hardy property of means and the best Hardy constants

Zsolt Páles, Paweł Pasteczka

The aim of this paper is to characterize in broad classes of means the so-called Hardy means, i.e., those means $M:{\bigcup }_{n=1}^{\infty }{\mathbb{R}}_{+}^n\to {\mathbb{R}}_{+}$ that sat…