A converse inequality of Fan, Taussky, and Todd
This paper contains a generalization of an inequality of \textit{K. Fan}, \textit{O. Taussky}, and \textit{J. Todd} [Monatsh. Math. 59, 73-90 (1955; Zbl 0064.298)] as well as of its converse given by \textit{H. Alzer} [J. Math. Anal. Appl. 161, No. 1, 142-147 (1991; Zbl 0747.26014)].
scientific article; zbMATH DE number 584080